Recycling of map that monks produce (10)
I believe the answer is:
chartreuse
'that monks produce' is the definition.
(wine traditionally made by monks)
'recycling of map' is the wordplay.
I cannot quite see how this works, but
'recycling' could be 'reuse' (I've seen this before) and 'reuse' is found in the answer.
'map' could be 'chart' (chart is a kind of map) and 'chart' is present in the answer.
No letters remain.
This explanation may well be incorrect...
(Other definitions for chartreuse that I've seen before include "Green or yellow liqueur made by monks" , "drink" , "Carthusian liqueur" , "The spirit" , "green liquid" .)