Prepare to be original (5)
I believe the answer is:
prime
This clue is a double definition.
'prepare' is the first definition.
(priming is a kind of preparing)
'be original' is the second definition.
(I've seen this before)
'to' acts as a link.
(Other definitions for prime that I've seen before include "Of first quality" , "Monastic service; best quality" , "Main - charge" , "Chief or best quality" , "Maybe eleven" .)