Working with heads of government agency to support Conservative party line? (5)
I believe the answer is:
conga
'party line?' is the definition.
(I've seen this in another clue)
'working with heads of government agency to support conservative' is the wordplay.
'working' becomes 'on' (e.g. a machine is working or on).
'with heads of' says to take the initial letters (I've seen 'with head of' mean this).
'to support' means one lot of letters go next to another (in a down clue, some letters hold others up).
'conservative' becomes 'C' (UK political abbreviation).
The initial letters of 'government agency' is 'ga'.
'on'+'ga'='onga'
'onga' after 'c' is 'CONGA'.
(Other definitions for conga that I've seen before include "Chain dance" , "Snaking Latin American dance" , "Cuban dance of three steps followed by a kick" , "Latin-American dance" , "Latin American dance with three steps and a kick" .)