Common clothing turned to kind of blue or red (10)
I believe the answer is:
trotskyite
'red' is the definition.
(I know that Trotskyite is a type of red)
'common clothing turned to kind of blue' is the wordplay.
'common' becomes 'trite' (trite can mean common or cliched).
'clothing' means one lot of letters goes inside another (some letters cover up or clothe others).
'turned' is an anagram indicator.
'kind of blue' becomes 'sky' (sky blue).
'to' with letters rearranged gives 'ot'.
'ot'+'sky'='otsky'
'trite' going around 'otsky' is 'TROTSKYITE'.
'or' is the link.
(Other definitions for trotskyite that I've seen before include "Radical red" , "Revolutionary" , "Old red" , "lefty" .)