Pulverised head of angleworm in part: it should attract fish (10)
I believe the answer is:
groundbait
'it should attract fish' is the definition.
(groundbait might be used to attract fish)
'pulverised head of angleworm in part' is the wordplay.
'pulverised' becomes 'ground' (past tense of 'grind').
'head of' indicates taking the first letters.
'in' indicates putting letters inside.
'part' becomes 'bit' (both mean a piece of something).
The initial letter of 'angleworm' is 'a'.
'a' placed into 'bit' is 'bait'.
'ground'+'bait'='GROUNDBAIT'
(Another definition for groundbait that I've seen is " hooker's hoping this'll be tempting".)