Crossword Genius

It afforded vision and helped to save face (5)

Ross

I believe the answer is:

visor

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

This might be a double definition.

'it afforded vision and helped' is the first definition.
The definition suggests a singular noun which matches the answer.

'save face' is the second definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Maybe there's a link between them I don't understand?

'to' is the link.

Can you help me to learn more?

(Other definitions for visor that I've seen before include "Face armour" , "Part of an armour helmet" , "Face-protector" , "shade" , "Helmet's face-cover" .)

I've seen this clue in the Evening Standard.
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