Drew musket, taking out Greek character. Revolutionary day! (8)
I believe the answer is:
sketched
'drew' is the definition.
(sketching is a kind of drawing)
'musket taking out greek character revolutionary day' is the wordplay.
'taking out' indicates named letters should be taken away.
'greek character' becomes 'mu' (letter from the Greek alphabet).
'revolutionary' becomes 'che' (Che Guevara the Marxist revolutionary).
'day' becomes 'd' (abbreviation for day).
'musket' with 'mu' taken out is 'sket'.
'sket'+'che'+'d'='SKETCHED'
(Other definitions for sketched that I've seen before include "Drawn" , "Made a preliminary drawing" , "Drew in outline" , "Designed" , "Made a quick, rough drawing" .)