Crossword Genius

Use covering of tinfoil to wrap uncooked fish (5)

Ross

I believe the answer is:

trawl

I'm a little stuck... Click here to teach me more about this clue!

'fish' is the definition.
(trawl can mean to fish)

I can't explain the remainder of the clue.

Can you help me to learn more?

(Other definitions for trawl that I've seen before include "Large net used for fishing" , "Fish by dragging bag-net along sea bed" , "Comb" , "hunt" , "Fishermen may use it" .)

I've seen this clue in The Guardian.
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