Can love tailless bird (7)
I believe the answer is:
tinamou
'bird' is the definition.
(tinamou is a kind of bird)
'can love tailless' is the wordplay.
'can' becomes 'tin' (both are metal containers).
'love' becomes 'amour' ('love' in French).
'tailless' means to remove the last letter (the tail of the word is removed).
'amour' with its last letter taken away is 'amou'.
'tin'+'amou'='TINAMOU'
(Other definitions for tinamou that I've seen before include "S. American partridge-like bird" , "Grouse, it may appear?" , "Grouse-like tropical bird" , "US bird" , "Bird related to rhea" .)