Green dye put into blue as ordered (11)
I believe the answer is:
sustainable
'blue as ordered' is the definition.
I can't tell whether this definition defines the answer.
'green dye put into' is the wordplay.
'green' becomes 'suable' (I am not sure about this - if you are sure you should believe this answer much more).
'dye' becomes 'stain' (staining is a kind of dyeing).
'put into' is an insertion indicator.
'suable' enclosing 'stain' is 'SUSTAINABLE'.
Can you help me to learn more?
(Other definitions for sustainable that I've seen before include "Able to be maintained" , "Maintaining a balance by not depleting natural resources" , "It's a bus lane (anag.)" , "Able to be kept going" , "Able to continue over a period of time" .)