To be gripping not everyone, one put in power (8)
I believe the answer is:
enthrone
'one put in power' is the definition.
(I've seen this before)
'to be gripping not everyone' is the wordplay.
I cannot quite see how this works, but
'not' could be 'nt' (synonyms) and 'nt' is located in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for enthrone that I've seen before include "Install a monarch" , "Exalt as royalty" , "make king" , "Put in power" , "Put a monarch in place" .)