A girl's age shows in her face (6)

I believe the answer is:

visage

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'face' is the definition.
(I know that visage is a type of face)

'a girl's age' is the wordplay.
'a girl's' becomes 'Vis' (short for Violet).
'vis'+'age'='VISAGE'

'shows in her' is the link.
This may not be right. Some or all of it may belong to another bit of the clue.

Can you help me to learn more?

(Other definitions for visage that I've seen before include "Clock" , "Face, aspect" , "Mug" , "A person's face, countenance" .)

I've seen this clue in the Evening Standard.

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