One politician's devils (4)
I believe the answer is:
imps
'devils' is the definition.
(devil-like creatures)
'one politician's' is the wordplay.
I cannot really understand how this works, but
'one' could be 'i' (Roman numeral) and 'i' is located in the answer.
'politician's' could be 'mps' (Member of Parliament) and 'mps' is present in the answer.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for imps that I've seen before include "Children causing trouble" , "Small devils or mischievous children" , "Naughty sprites" , "Mischievous characters" , "naughty children" .)