Body’s face has changed; it’s wretched (6)
I believe the answer is:
abject
'wretched' is the definition.
(I've seen this before)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for abject that I've seen before include "Lacking all pride, like a humble apology" , "Deeply miserable" , "Wretched, worthless" , "Submissive, miserable" , "Completely without pride" .)