Foodie heading for tavern after exam in postwar capital (3,6)
I believe the answer is:
bon vivant
'foodie' is the definition.
(person who enjoys a life of luxury)
'heading for tavern after exam in postwar capital' is the wordplay.
'heading for' says to take the initial letters.
'after' is a charade indicator (letters next to each other).
'exam' becomes 'viva' (short for 'viva voce', an oral examination**).
'in' indicates putting letters inside.
'postwar capital' becomes 'bonn' (capital of West Germany).
The initial letter of 'tavern' is 't'.
'viva' inserted within 'bonn' is 'bonvivan'.
't' after 'bonvivan' is 'BON VIVANT'.
(Other definitions for bon vivant that I've seen before include "One who enjoys eating and drinking" , "one enjoying best courses" , "Gourmet" , "He's fond of good food and wine - in France" , "> who likes the good life?" .)