Crossword Genius

What makes Oxford look bright? (9)

Ross

I believe the answer is:

shoeshine

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

'what makes' is the definition.
I can't judge whether this defines the answer.

'oxford look bright?' is the wordplay.
'oxford' becomes 'shoe' (I've seen this in another clue).
'look bright?' becomes 'shine' (I can't justify this - if you can you should give a lot more credence to this answer).
'shoe'+'shine'='SHOESHINE'

Can you help me to learn more?

(Other definitions for shoeshine that I've seen before include "polish" , "Footwear polishing (US)" , "Footwear cleaning (US)" .)

I've seen this clue in The Times.
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