Valley in wrangle, needless (4)

I believe the answer is:

glen

'valley' is the definition.
(I know that glen is a type of valley)

'in wrangle needless' is the wordplay.
'in' says the answer is hidden in the clue.
'GLEN' is hidden within 'wrangle needless'.

(Other definitions for glen that I've seen before include "Narrow secluded valley in mountains" , "Narrow, deep mountain valley" , "Campbell perhaps" , "Narrow Scots valley" , "Depression in Scotland" .)

I've seen this clue in The Times.

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