Sort of green plan to recycle (10)
I believe the answer is:
chartreuse
'sort of green' is the definition.
'plan to recycle' is the wordplay.
'plan' becomes 'chart' (chart can mean a plan or diagram).
'to recycle' becomes 'reuse' (synonyms).
'chart'+'reuse'='CHARTREUSE'
(Other definitions for chartreuse that I've seen before include "drink" , "Pale green-yellow colour" , "Green-yellow liqueur" , "Carthusian liqueur" , "Green or yellow liqueur made by monks" .)