Glowing bloody euphemistically (5)
I believe the answer is:
ruddy
This could be a double definition.
'glowing' is the first definition.
(thesaurus)
'bloody euphemistically' is the second definition.
'ruddy' can be an answer for 'bloody' (ruddy is a version of the swearword 'bloody'). I am not certain of the 'euphemistically' bit.
Can you help me to learn more?
(Other definitions for ruddy that I've seen before include "Reddish; -- duck" , "Dratted" , "Damned - healthy" , "Rosy" , "Healthy reddish complexion" .)