Told to redo, changing the colour (7)
I believe the answer is:
ordered
'told' is the definition.
('order' can be a synonym of 'tell')
'redo changing the colour' is the wordplay.
'changing' is an anagram indicator.
'the colour' becomes 'red' (red is a kind of colour).
'redo' anagrammed gives 'orde'.
'orde'+'red'='ORDERED'
'to' acts as a link.
(Other definitions for ordered that I've seen before include "Sorted out" , "Told" , "required" , "Issued a command" , "Settled, tidy" .)