Deluded wartime flier about to miss game (4)
I believe the answer is:
hess
'game' is the definition.
Both the answer and definition are singular nouns.
Perhaps they are linked in a way I don't understand?
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for hess that I've seen before include "Famous pianist" , "leading Nazi" , "Rudolf ..., Nazi leader imprisoned at Spandau" , "Pianist Myra, Nazi Rudolf ---" , "Cite as evidence" .)