Credit for catching a fish with a lobster trap (5)
I believe the answer is:
creel
'a lobster trap' is the definition.
(I've seen this before)
'credit for catching a fish' is the wordplay.
I cannot really understand how this works, but
'credit' could be 'cr' (abbreviation) and 'cr' is located in the answer.
'fish' could be 'eel' (eel is a type of fish) and 'eel' is found within the answer.
This accounts for all the letters.
This explanation may well be incorrect...
'with' acts as a link.
Can you help me to learn more?
(Other definitions for creel that I've seen before include "Container for fish" , "Basket to hold fish" , "Basket (for a mackerel once caught?)" , "Fish-basket" , "lobster basket" .)