Could such virgins use valets? (6)

I believe the answer is:

vestal

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

'could such virgins' is the definition.
I can't judge whether this defines the answer.

'use valets?' is the wordplay.
'use' indicates an anagram.
'valets' is an anagram of 'VESTAL'.

Can you help me to learn more?

(Other definitions for vestal that I've seen before include "Modest female" , "Fat for candles/soap" , "Consecrated Roman virgin" , "Like virgins of old" , "Woman dedicated to celibacy" .)

I've seen this clue in the Evening Standard.

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