Flipped over final courses under pressure (8)
I believe the answer is:
stressed
'under pressure' is the definition.
(I've seen this before)
'flipped over final courses' is the wordplay.
'flipped over' shows that the letters should be reversed in order.
'final courses' becomes 'desserts' (I've seen this before).
'desserts' in reverse letter order is 'STRESSED'.
(Other definitions for stressed that I've seen before include "Emphasized or strained" , "Screwed up" , "Suffering mental strain" , "Suffering from physical or emotional strain" , "Tense; highlighted" .)