Kind of net (5)
I believe the answer is:
trawl
'kind of net' is the definition.
(I know that trawl is a type of fishing net)
This is all the clue.
(Other definitions for trawl that I've seen before include "fishing expedition" , "Fish using a towed net" , "Long fishing line with many shorter lines and hooks" , "Net dragged behind fishing boats" , "Large net used for fishing" .)