What could put you under intensive therapy, in part (5)
I believe the answer is:
ether
'what could put' is the definition.
I can't judge whether this definition defines the answer.
'under intensive therapy in part' is the wordplay.
'in part' says the answer is hidden in the clue.
'ETHER' is hidden within 'under intensive therapy'.
'you' is the link.
Can you help me to learn more?
(Other definitions for ether that I've seen before include "Volatile solvent" , "Highly flammable liquid once used as an anaesthetic" , "Gas - air - space" , "Once widely-used anaesthetic" , "Anaesthetic; clear sky (poetic)" .)