Formerly healthy, daughter had a blow-out? (7)
I believe the answer is:
exhaled
'a blow-out?' is the definition.
I can't judge whether this defines the answer.
'formerly healthy daughter' is the wordplay.
'formerly' becomes 'ex' (prefix meaning former or onetime).
'healthy' becomes 'hale' (hale can mean fit and healthy).
'daughter' becomes 'd' (genealogical abbreviation).
'ex'+'hale'+'d'='EXHALED'
'had' acts as a link.
Can you help me to learn more?
(Other definitions for exhaled that I've seen before include "Gave off" , "blown out" , "Sent out" , "Breathed out" .)