Can be worn during the harvest season (5)

I believe the answer is:

vests

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

'can be worn' is the definition.
I can't judge whether this defines the answer.

'during the harvest season' is the wordplay.
'during' says the answer is hidden in the clue.
'VESTS' is hidden within 'harvest season'.

Can you help me to learn more?

(Another definition for vests that I've seen is " Sleeveless garments".)

I've seen this clue in the Evening Standard.

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