Newly relive the French morning call for soldiers (8)
I believe the answer is:
reveille
'morning call for soldiers' is the definition.
(signal sounded to wake up soldiers)
'newly relive the french' is the wordplay.
'newly' is an anagram indicator.
'the french' becomes 'le' ('the' in French).
'relive' anagrammed gives 'reveil'.
'reveil'+'le'='REVEILLE'
(Other definitions for reveille that I've seen before include "Military wake-up call" , "The wake-up army bugle call" , "Early morning sound in the barracks" , "Morning call" , "Army bugle call to get out of bed" .)