Cook lunch: I bet one so needs food for two? (2,3,4)
I believe the answer is:
in the club
'one so needs food for two?' is the definition.
I know nothing about this answer so I can't tell whether it can be defined by this definition.
'cook lunch i bet' is the wordplay.
'cook' indicates an anagram.
'lunch'+'i'+'bet'='lunchibet'
'lunchibet' with letters rearranged gives 'IN THE CLUB'.
Can you help me to learn more?
(Other definitions for in the club that I've seen before include "Possibly accepted" , "not to have been blackballed?" , "Pregnant (slang)" , "Expecting" , "putting on weight?" .)