The most common and most likely answer to this crossword clue is the 4 letter word AKIN
I've seen this crossword clue in The Sunday Telegraph
A
K
I
N
More clues leading to the result AKIN
- Dark fiend off and on getting close?
- A type lacking finish is similar
- Like creating cake or bun’s filling?
- Previously sufferin’ similar
- Pretending to be undressed, or similar
- Like taking part in merrymaking
- Fancy Latin president
- It’s like baking without gas
- A piece, not entirely similar
- Like coming round naked
Buddy explains!

The straight part
We know that "similar" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case similar = akin.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 AKIN mean?
AKIN adjective- (of persons) Of the same kin; related by blood.
- (often followed by to) Allied by nature; similar; partaking of the same properties; of the same kind.