Vet confused with stray in farce (8)
I believe the answer is:
travesty
'farce' is the definition.
(synonyms)
'vet confused with stray' is the wordplay.
'confused with' indicates anagramming the letters.
'vet' mixed up with 'stray' can make 'TRAVESTY'.
'in' is the link.
(Other definitions for travesty that I've seen before include "'Farce, parody (8)'" , "Burlesque, parody" , "Absurd misrepresentation" , "Grotesque representation" , "Make fun of" .)