Crow almost eaten by a vampire athlete? (7)
I believe the answer is:
acrobat
'athlete?' is the definition.
(acrobat is a kind of athlete)
'crow almost eaten by a vampire' is the wordplay.
'almost' means to remove the last letter (most of the word but not all of it).
'eaten by' is an insertion indicator.
'vampire' becomes 'bat' (I've seen this in another clue).
'crow' with its final letter taken away is 'cro'.
'a'+'bat'='abat'
'cro' put into 'abat' is 'ACROBAT'.
(Other definitions for acrobat that I've seen before include "Performer going head over heels?" , "User of five ac" , "Performing gymnast" , "Boat car (anag.)" , "circus artiste" .)