Bird ablaze with love (8)
I believe the answer is:
flamingo
'bird' is the definition.
(flamingo is a kind of bird)
'ablaze with love' is the wordplay.
'ablaze' becomes 'flaming' (synonyms).
'with' means one lot of letters go next to another.
'love' becomes 'o' (love means zero in tennis).
'flaming'+'o'='FLAMINGO'
(Other definitions for flamingo that I've seen before include "Large pink bird" , "Exotic bird" , "Pretty bird" , "Long-legged wader" , "Pink wader" .)