Remedy may be to change gear (7)

I believe the answer is:

redress

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'remedy' is the definition.
(I know that remedy can be written as redress)

'to change gear' is the wordplay.
'to change' becomes 're' (I can't explain this - if you can you should believe this answer much more).
'gear' becomes 'dress' (both can mean clothing).
're'+'dress'='REDRESS'

'may be' acts as a link.

Can you help me to learn more?

(Other definitions for redress that I've seen before include "Put right" , "Reparation" , "Set right - compensation" , "remedy" , "Make amends for" .)

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

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