Decline to remove wrinkles? (8)

I believe the answer is:

decrease

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'decline' is the definition.
(I've seen this before)

'remove wrinkles?' is the wordplay.
'remove' becomes 'de' (I've seen this in other clues).
'wrinkles?' becomes 'crease' (I can't explain this - if you can you should give a lot more credence to this answer).
'de'+'crease'='DECREASE'

'to' acts as a link.

Can you help me to learn more?

(Other definitions for decrease that I've seen before include "Make smaller or fewer" , "cut back" , "Weaken" , "subsidence" , "Abate, diminish" .)

I've seen this clue in The Globe and Mail.

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