Design colour that's largely relabelled? (7)
I believe the answer is:
purpose
'design' is the definition.
(thesaurus)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for purpose that I've seen before include "End" , "Resolve; reason" , "Aim, intention, design" , "Function" , "Resolve, determination" .)