Draw with colour in layers (6)
I believe the answer is:
tiered
'in layers' is the definition.
(I've seen this before)
'draw with colour' is the wordplay.
'draw' becomes 'tie' ('tie' can be a synonym of 'draw').
'with' says to put letters next to each other.
'colour' becomes 'red' (red is a kind of colour).
'tie'+'red'='TIERED'
(Other definitions for tiered that I've seen before include "In ranks" , "Ranked" , "Arranged in rising 5 ac" , "Like some wedding cakes" , "Set out in layers like wedding cake" .)