The most common and most likely answer to this crossword clue is the 5 letter word JOINT
I've seen this crossword clue in The Guardian
J
O
I
N
T
More clues leading to the result JOINT
- Piece of meat, bit that's eaten at home
- Make a note of eating in informal establishment
- Shared trifle around at home
- Quickly set down outside fashionable nightclub, maybe
- Meet on time in disreputable bar
- Cut in knee, say
- Judge slipping into seedy club
- Piece of meat shared with others
- Common couple
- Dive in amidst scrap
Buddy explains!

The straight part
We know that "Shared" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case shared = joint.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 JOINT mean?
JOINT noun- The point where two components of a structure join, but are still able to rotate.
- The point where two components of a structure join rigidly.
- Any part of the body where two bones join, in most cases allowing that part of the body to be bent or straightened.
- The means of securing together the meeting surfaces of components of a structure.
- A cut of meat.
- The part or space included between two joints, knots, nodes, or articulations.
- A fracture in which the strata are not offset; a geologic joint.
- (somewhat derogatory) A place of business, particularly in the food service or hospitality industries.
- (with the definite article) Prison.
- A marijuana cigarette.
- A syringe used to inject an illicit drug.
- The penis.
- To unite by a joint or joints; to fit together; to prepare so as to fit together
- To join; to connect; to unite; to combine.
- To provide with a joint or joints; to articulate.
- To separate the joints; of; to divide at the joint or joints; to disjoint; to cut up into joints, as meat.
- To fit as if by joints; to coalesce as joints do.
- Done by two or more people or organisations working together.