Fish: recalled small piece difficult to chew (8)
I believe the answer is:
pilchard
'fish' is the definition.
(pilchard is a kind of fish)
'recalled small piece difficult to chew' is the wordplay.
'recalled' is a reversal indicator (to recall can mean to bring something back).
'small piece' becomes 'clip' (I can't justify this - if you can you should give a lot more credence to this answer).
'difficult to chew' becomes 'hard' (as in hard food).
'clip' back-to-front is 'pilc'.
'pilc'+'hard'='PILCHARD'
Can you help me to learn more?
(Other definitions for pilchard that I've seen before include "Fish of herring family" , "Small fatty fish, usually tinned" , "'Small fatty fish, usually canned (8)'" , "Edible herring relative" , "type of fish" .)