Commission supporting church services working group (4,5)
I believe the answer is:
task force
'working group' is the definition.
(I've seen this before)
'commission supporting church services' is the wordplay.
I cannot quite see how this works, but
'commission' could be 'task' (I've seen this before) and 'task' is located in the answer.
'supporting' could be 'for' (being for something means supporting it) and 'for' is found within the answer.
'church' could be 'ce' (abbreviation for Church of England) and 'ce' is located in the answer.
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 task force that I've seen before include "Group for special operation" , "Temporary group to do a job" , "special unit" , "Group with a mission" , "Group specially organised for particular assignment" .)