When Sue and Carl get together, there’s nothing sacred (7)
I believe the answer is:
secular
'sacred' is the definition.
Both the answer and definition are adjectives. Maybe they are linked in a way I don't understand?
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for secular that I've seen before include "Not religious or sacred" , "associated with those who are 21 [LAYMEN]" , "Worldly" , "Clear us, not being involved in religion" , "Not involving religion,worldly" .)