Advertiser combines opportunity with furniture (6,7)

I believe the answer is:

window dresser

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'advertiser combines opportunity with furniture' is the definition.
I can't judge whether this definition defines the answer.

'opportunity with furniture' is the wordplay.
'opportunity' becomes 'window' (I've seen this before).
'with' is a charade indicator (letters next to each other).
'furniture' becomes 'dresser' (dresser is a kind of furniture).
'window'+'dresser'='WINDOW-DRESSER'

Can you help me to learn more?

(Other definitions for window dresser that I've seen before include "Shopfront decorator" , "Person who arranges shop front displays" , "Shop display arranger" , "Shop front display organiser" , "Shop display creator" .)

I've seen this clue in The Daily Express.

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