Cuppa on K2? (4,3)
I believe the answer is:
high tea
'cuppa on k2?' is the definition.
I can't tell whether this defines the answer.
'cuppa on k2?' is the wordplay.
'cuppa' becomes 'tea' (informal term for a cup of tea).
'on' is a charade indicator (letters next to each other).
'ki?' becomes 'high' (I am not sure about this - if you are sure you should believe this answer much more).
'tea' put after 'high' is 'HIGH TEA'.
Can you help me to learn more?
(Other definitions for high tea that I've seen before include "Late-afternoon meal" , "Early evening meal" , "Early-evening meal" , "A lofty kind of evening meal" , "Late afternoon meal which includes a cooked dish" .)