Accommodate an attorney with pint (5)
I believe the answer is:
adapt
'accommodate' is the definition.
(synonyms)
'an attorney with pint' is the wordplay.
'an' becomes 'a'.
'attorney' becomes 'D.A.' (District Attorney).
'with' means one lot of letters go next to another.
'pint' becomes 'pt' (abbreviation).
'a'+'da'+'pt'='ADAPT'
(Other definitions for adapt that I've seen before include "Put to particular use" , "Change to suit a different purpose" , "Change to suit a new purpose" , "Acclimatize" , "Become adjusted to new conditions" .)