Having rogue agent on encrypted line is awkward (9)
I believe the answer is:
inelegant
'awkward' is the definition.
(thesaurus)
'having rogue agent on encrypted line' is the wordplay.
I cannot really understand how this works, but
an anagram of 'agent' is 'egant' which is within the answer.
an anagram of 'line' is 'inel' which is located in the answer.
No letters remain.
This explanation may well be incorrect...
'is' acts as a link.
Can you help me to learn more?
(Other definitions for inelegant that I've seen before include "Awkward - graceless" , "Not stylish or refined" , "not the herb of grace?" , "Eglantine (anag)" , "gauche" .)