Partial apology struck revolutionary as show of respect (6)
I believe the answer is:
curtsy
'show of respect' is the definition.
'partial apology struck revolutionary' is the wordplay.
'partial' indicates a hidden word.
'revolutionary' shows that the letters should be reversed in order (letters revolve around).
'ystruc' is hidden within 'apology struck'.
'ystruc' in reverse letter order is 'CURTSY'.
'as' acts as a link.
(Other definitions for curtsy that I've seen before include "Bend the knee in respect" , "Bend the knees in a gesture of respect" , "Female obeisance bending the knees" , "Woman's formal greeting" , "Kind of respectful bob made by women" .)