Flag-carrying soldier resolved to clear surgeon (6)
'flag-carrying soldier' is the definition.
'resolved to clear surgeon' is the wordplay.
'resolved' indicates anagramming the letters.
'to'+'clear'+'surgeon'='toclearsurgeon'
'toclearsurgeon' with letters rearranged gives 'COLOUR-SERGEANT'.
(Other definitions for colour sergeant that I've seen before include "Senior NCO" , "army officer" .)
'resolved to clear surgeon' is the definition.
I can't judge whether this definition defines the answer.
'flag-carrying soldier' is the wordplay.
'flag' becomes 'our' (I can't explain this - if you can you should believe this answer much more).
'carrying' means one lot of letters go next to another.
'soldier' becomes 'col'.
'our' put after 'col' is 'COLOUR'.
Can you help me to learn more?
(Other definitions for colour that I've seen before include "Hue, shade" , "Affect" , "Such a sergeant" , "Red or green, say" , "Quality that results from light reflection" .)