Crossword Genius

Vacuous troll barracking immature use of Net (5)

Ross

I believe the answer is:

trawl

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

'net' is the definition.
(I know that trawl is a type of fishing net)

'vacuous troll barracking immature use' is the wordplay.
I cannot quite see how this works, but
'immature' could be 'raw' (I've seen this before) and 'raw' is located in the answer.
This explanation may well be incorrect...

'of' is the link.

Can you help me to learn more?

(Other definitions for trawl that I've seen before include "Catch" , "seek suitable candidates" , "Fish using nets" , "Net dragged behind fishing boats" , "Fish by dragging bag-net along sea bed" .)

I've seen this clue in The Telegraph.
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