Inform a pretty accommodating Conservative (8)
I believe the answer is:
acquaint
'inform' is the definition.
(acquainting is a kind of informing)
'a pretty accommodating conservative' is the wordplay.
'pretty' becomes 'quaint' (quaint can mean pretty or picturesque).
'accommodating' indicates putting letters inside.
'conservative' becomes 'C' (abbreviation commonly used in UK politics).
'a'+'quaint'='aquaint'
'aquaint' going around 'c' is 'ACQUAINT'.
(Other definitions for acquaint that I've seen before include "Inform" , "Get familiar" , "Make someone familiar with" , "American to introduce" , "Get to come to know" .)