Crossword Genius

Might one help one see painting in a different light? (7,8)

Ross

I believe the answer is:

picture restorer

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

'might one help one' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.

'painting in a different light?' is the wordplay.
'painting' becomes 'picture' (synonyms).
'in a different light?' becomes 'restorer' (I can't justify this - if you can you should believe this answer much more).
'picture'+'restorer'='PICTURE RESTORER'

'see' is the link.

Can you help me to learn more?

(Another definition for picture restorer that I've seen is " One improving Old Masters".)

I've seen this clue in The Telegraph.
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