Ran through part of funeral cortège wearing scarlet (9)
I believe the answer is:
rehearsed
'ran through' is the definition.
(I've seen this in another clue)
'funeral cortege wearing scarlet' is the wordplay.
'funeral cortege' becomes 'hearse' (I am not sure about this - if you are sure you should believe this answer much more).
'wearing' means one lot of letters goes inside another.
'scarlet' becomes 'red' (synonyms).
'hearse' inserted within 'red' is 'REHEARSED'.
'part of' acts as a link.
Can you help me to learn more?
(Other definitions for rehearsed that I've seen before include "went over" , "Front-rear axle distance" , "Practised for public performance" , "Practiced (a play)" .)