Cook ten fish and snarl (8)
I believe the answer is:
entangle
'snarl' is the definition.
(I've seen this before)
'cook ten fish' is the wordplay.
'cook' is an anagram indicator.
'fish' becomes 'angle' (angling is a kind of fishing).
'ten' is an anagram of 'ent'.
'ent'+'angle'='ENTANGLE'
'and' acts as a link.
(Other definitions for entangle that I've seen before include "Involve undesirably" , "Entwine or involve in something complicated" , "Snare" , "Twist together into a confusing mass" , "caught up" .)