See you go to glory in a uniform (5)
I believe the answer is:
adieu
'see you' is the definition.
(I've seen this in another clue)
'go to glory in a uniform' is the wordplay.
I cannot really see how this works, but
'go' could be 'die' (synonyms) and 'die' is present in the answer.
'a' is present in the answer.
'uniform' could be 'u' (phonetic alphabet: alpha, bravo, charlie etc.) and 'u' is located in the answer.
No letters remain.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for adieu that I've seen before include "I'm away (in France?)" , "So long abroad" , "Cheerio" , "Goodbye in France" , "Farewell, ami!" .)