She spends her life in an unworldly environment (3)
I believe the answer is:
nun
'she spends her life' is the definition.
I can't tell whether this defines the answer.
'in an unworldly environment' is the wordplay.
'in' says the answer is hidden in the clue.
'NUN' is hidden within 'an unworldly environment'.
Can you help me to learn more?
(Other definitions for nun that I've seen before include "Woman in Holy Orders" , "Woman respecting order" , "Convent dweller" , "Priory female" , "Woman with a habit" .)