The most common and most likely answer to this crossword clue is the 5 letter word BLOCK
I've seen this crossword clue in The Daily Telegraph
B
L
O
C
K
More clues leading to the result BLOCK
- Jam or cake?
- Choke bishop with wrestling hold
- Stop urban division
- Obstruction in a built-up area
- Scotch beef initially put on hold – on the contrary
- It may be used to lift obstruction
- Cake in hamper?
- Second-class security device for group of buildings
- Chunk of boy's hair
- Mass brawl on vacation leads to organiser cancelling kickabout
Buddy explains!

The straight part
We know that "Cake/hamper" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case cake/hamper = block.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does BLOCK mean?
BLOCK noun- A substantial, often approximately cuboid, piece of any substance.
- A chopping block; cuboid base for cutting or beheading.
- A group of urban lots of property, several acres in extent, not crossed by public streets.
- A residential building consisting of flats.
- The distance from one street to another in a city that is built (approximately) to a grid pattern.
- Interference or obstruction of cognitive processes.
- The human head.
- A wig block: a simplified head model upon which wigs are worn.
- A mould on which hats, bonnets, etc., are shaped.
- A set of sheets (of paper) joined together at one end.
- A logical data storage unit containing one or more physical sectors (see cluster).
- A region of code in a program that acts as a single unit, such as a function or loop.
- A fixed-length group of bits making up part of a message.
- A case with one or more sheaves/pulleys, used with ropes to increase or redirect force, for example, as part of the rigging of a sailing ship.
- A portion of a macromolecule, comprising many units, that has at least one feature not present in adjacent portions.
- Something that prevents something from passing.
- An action to interfere with the movement of an opposing player or of the object of play (ball, puck).
- A shot played by holding the bat vertically in the path of the ball, so that it loses momentum and drops to the ground.
- A defensive play by one or more players meant to deflect a spiked ball back to the hitter’s court.
- A joined group of four (or in some cases nine) postage stamps, forming a roughly square shape.
- A section of split logs used as fuel.
- Solitary confinement.
- A cellblock.
- The perch on which a bird of prey is kept.
- A piece of hard wood on which a stereotype or electrotype plate is mounted.
- A blockhead; a stupid fellow; a dolt.
- A section of a railroad where the block system is used.
- The position of a player or bat when guarding the wicket.
- A blockhole.
- The popping crease.
- A discrete group of vines in a vineyard, often distinguished from others by variety, clone, canopy training method, irrigation infrastructure, or some combination thereof.
- To fill (something) so that it is not possible to pass.
- To prevent (something or someone) from passing.
- To prevent (something from happening or someone from doing something).
- To impede an opponent.
- To specify the positions and movements of the actors.
- To hit with a block.
- To play a block shot.
- To disable communication via telephone, instant messaging, etc., with an undesirable someone.
- To wait.
- To stretch or mould (a knitted item, a hat, etc.) into the desired shape.
- To shape or sketch out roughly.