Faint any minute now when wife comes in (5)
I believe the answer is:
swoon
'faint' is the definition.
(synonyms)
'any minute now when wife comes in' is the wordplay.
'any minute now' becomes 'so' (I can't justify this - if you can you should give a lot more credence to this answer).
'when' becomes 'on' (I've seen this in other clues).
'wife' becomes 'w' (abbreviation).
'comes in' indicates putting letters inside.
'so'+'on'='soon'
'soon' placed around 'w' is 'SWOON'.
Can you help me to learn more?
(Other definitions for swoon that I've seen before include "experience ecstasy" , "Pass out" , "Show ecstasy" , "Fall fainting" , "Lose consciousness" .)