Faction ready to bring Conservative on board (4)
I believe the answer is:
sect
'faction' is the definition.
(I know that faction can be written as sect)
'ready to bring conservative on board' is the wordplay.
I cannot really understand how this works, but
'conservative' could be 'c' (UK political abbreviation) and 'c' is located in the answer.
'ready' could be 'set' (set can mean ready or prepared) and 'set' is found within the leftover letters.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for sect that I've seen before include "Subdivision of a religion" , "School, faction" , "Religious splinter group" , "Group of people with unusual religious beliefs" , "Dissenting division of a larger religious group" .)