Singer in Fielding's novel (3,5)
I believe the answer is:
tom jones
'novel' is the definition.
(I've seen this before)
'singer in fielding's' is the wordplay.
'singer' becomes 'tom' (tom is a kind of birdanimal).
'in fielding's' becomes 'jones' (I can't explain this - if you can you should give a lot more credence to this answer).
'tom'+'jones'='TOM JONES'
Can you help me to learn more?
(Other definitions for tom jones that I've seen before include "Welsh singer < in German comic opera" , "Henry Fielding novel; singer" , "Book" , "1749 Henry Fielding novel" , "film" .)