Positive response given to Germany's colours (4)
I believe the answer is:
Here is my best explanation:
'colours' is the definition.
(dyeing is a kind of colouring)
'positive response given to germany's' is the subsidiary indication.
'positive response' becomes 'yes' (I've seen this before).
'given to' means one lot of letters go next to another.
'germany' becomes 'd'.
'yes' put after 'd' is 'dyes'.
(Other definitions for dyes that I've seen before include "Stains", "turns green, possibly", "Many a pigment", "colours", "Colouring materials", "Colours (fabric)", "Substances for staining or colouring" and "Colour".)