Show less restraint in puzzle? (8)
I believe the answer is:
bewilder
'puzzle' is the definition.
(I know that puzzle can be written as bewilder)
'show less restraint' is the wordplay.
I cannot really understand how this works, but
'show' could be 'er' (US medical drama) and 'er' is found in the answer.
This may be the basis of the clue (or it may be nonsense).
'in' acts as a link.
Can you help me to learn more?
(Other definitions for bewilder that I've seen before include "Baffle" , "Nonplus" , "fox" , "Perplex the wild beer" , "Deli brew (anag.)" .)