Animal capturing hearts? Rabbit (4)
I believe the answer is:
chat
'rabbit' is the definition.
(I've seen this before)
'animal capturing hearts?' is the wordplay.
I cannot really understand how this works, but
'hearts?' could be 'h' (abbreviation used in card games e.g. bridge) and 'h' is found in the answer.
'animal' could be 'cat' (cats are animals) and 'cat' is located in the leftover letters.
No letters remain.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for chat that I've seen before include "Chinwag" , "Talking" , "Talk informally; bird" , "Small songbird of the thrush family" , "Bird - talk easily" .)