Frantically takes husband to ER for serious medical problem (10)
I believe the answer is:
heatstroke
'serious medical problem' is the definition.
The answer and definition can be both states of affairs as well as being singular nouns.
Perhaps there's an association between them I don't understand?
'frantically takes husband to er' is the wordplay.
'frantically' is an anagram indicator (I've seen this in other clues).
'husband' becomes 'h'.
'takes'+'h'+'to'+'er'='takeshtoer'
'takeshtoer' is an anagram of 'HEATSTROKE'.
'for' is the link.
Can you help me to learn more?
(Other definitions for heatstroke that I've seen before include "Kos at three (anag) - cause of high temperature?" , "Sickness" , "Malady from over exposure to the sun" , "Complaint from Sun" , "holiday upset" .)