Something in fish for example I can cut up at home (6)
I believe the answer is:
niacin
'something in fish' is the definition.
I can't tell whether this defines the answer.
'i can cut up at home' is the wordplay.
'cut up' is an anagram indicator.
'at home' becomes 'in' ('I'm in' can mean 'I'm at home').
'i'+'can'='ican'
'ican' anagrammed gives 'niac'.
'niac'+'in'='NIACIN'
'for example' is the link.
Can you help me to learn more?
(Other definitions for niacin that I've seen before include "Type of vitamin" , "B vitamin which assists the nervous system" , "Vitamin, nicotinic acid" , "An essential B vitamin in Cain, strangely" , "Another name for nicotinic acid" .)