Colourful part of the Sabre Dance (3)
I believe the answer is:
'colourful' is the definition.
(similar in meaning)
'part of the sabre dance' is the wordplay.
'part of' indicates the answer is hidden within the clue.
'RED' is hidden within 'sabre dance'.
(Other definitions for red that I've seen before include "The colour of the former Russian army" , "Florid" , "Blood-coloured" , "Looking embarrassed" , "Colour for danger" .)