Coalition of politicians (4)
I believe the answer is:
bloc
'coalition of politicians' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for bloc that I've seen before include "Allied group of countries or political parties" , "Group of parties or countries united in common interest - sounds wooden" , "League" , "-- Forsyth, entertainer" , "united nations" .)