Loveless coupling made in the dark (10)
I believe the answer is:
uninformed
'in the dark' is the definition.
(I've seen this before)
'loveless coupling made' is the wordplay.
'loveless coupling' becomes 'unin' (I am not sure about this - if you are sure you should believe this answer much more).
'made' becomes 'formed' ('form' can be a synonym of 'make').
'unin'+'formed'='UNINFORMED'
Can you help me to learn more?
(Other definitions for uninformed that I've seen before include "Missing dope" , "Not knowledgeable" , "in the dark" , "Lacking intelligence" .)