Food for a chap going to South Africa (5)
I believe the answer is:
salad
'food' is the definition.
(salad is a kind of food)
'a chap going to south africa' is the wordplay.
'a chap' becomes 'lad' ('lad' can be a synonym of 'chap'**).
'going to' means one lot of letters go next to another.
'south africa' becomes 'sa' (abbreviation).
'lad' put after 'sa' is 'SALAD'.
'for' is the link.
(Other definitions for salad that I've seen before include "Cold dish of vegetables or fruits" , "Raw vegetable dish" , "Food dish" , "Mixed food" , "See 22" .)