Worshipping spies? (6,7)
I believe the answer is:
secret service
'spies?' is the definition.
(I've seen this before)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for secret service that I've seen before include "Spying agency" , "Government department involved in espionage" , "Government agency" , "Spies' department" , "Hush-hush organisation" .)