Crossword Genius

Needed if it’s cool when we take a rest break outside (7)


I believe the answer is:


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'needed if it's cool' is the definition.
I can't tell whether this defines the answer.

'we take a rest break outside' is the wordplay.
'take' is a charade indicator (letters next to each other).
'break' indicates an anagram.
'outside' indicates putting letters inside.
'rest' anagrammed gives 'ster'.
'wea' going within 'ster' is 'SWEATER'.

'when' is the link.

Can you help me to learn more?

(Other definitions for sweater that I've seen before include "Heavy jersey" , "Wear" , "Top" , "Jumper (7)" , "Re waste: it's a garment" .)

I've seen this clue in the Evening Standard.
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