Point at which to have a meal (3)
I believe the answer is:
eat
'to have a meal' is the definition.
(I've seen this before)
'point at' is the wordplay.
'point' becomes 'e' (compass point).
'e'+'at'='EAT'
'which' is the link.
(Other definitions for eat that I've seen before include "Consume for tea" , "Have 23d [MEAL]" , "Gobble up" , "get stuck in" , "Make food disappear" .)