Crossword Genius

Dryer heat possibly requires one to do this (9)

Ross

I believe the answer is:

rehydrate

'one to do this' is the definition.
I know nothing about this answer so I cannot judge whether this works.

'dryer heat possibly' is the wordplay.
'possibly' indicates anagramming the letters.
'dryer'+'heat'='dryerheat'
'dryerheat' with letters rearranged gives 'REHYDRATE'.

'requires' acts as a link.

(Another definition for rehydrate that I've seen is " Add water to (a dried substance)".)

I've seen this clue in The Independent.
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