The most common and most likely answer to this crossword clue is the 7 letter word STUFFED
I've seen this crossword clue in The Daily Telegraph
S
T
U
F
F
E
D
Buddy explains!

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 STUFFED mean?
STUFFED verb- To fill by packing or crowding something into; to cram with something; to load to excess.
- To fill a space with (something) in a compressed manner.
- To fill with seasoning.
- To load goods into (a container) for transport.
- (used in the passive) To sate.
- (pronominal) To eat, especially in a hearty or greedy manner.
- To break; to destroy.
- To sexually penetrate.
- (mildly vulgar, often imperative) Used to contemptuously dismiss or reject something. See also stuff it.
- To heavily defeat or get the better of.
- To cut off another competitor in a race by disturbing his projected and committed racing line (trajectory) by an abrupt manoeuvre.
- To preserve a dead bird or other animal by filling its skin.
- To obstruct, as any of the organs; to affect with some obstruction in the organs of sense or respiration.
- To form or fashion by packing with the necessary material.
- To crowd with facts; to cram the mind of; sometimes, to crowd or fill with false or idle tales or fancies.
- To compress (a file or files) in the StuffIt format, to be unstuffed later.
- Full or packed (with some material or substance).
- Filled with seasoning
- Full after eating.
- Very tired.
- Broken, not functional; in trouble, in a situation from which one is unlikely to recover.