Back when I adroitly discovered fix (6)
I believe the answer is:
ordain
'fix' is the definition.
The answer and definition can be both to do with communicating as well as being verbs in their base form.
Maybe there's a link between them I don't understand?
'back when i adroitly discovered' is the wordplay.
'back' says the letters should be written in reverse.
'discovered' indicates a hidden word (remove the letters covering the answer in the clue).
'niadro' is hidden in the letters of 'when i adroitly'.
'niadro' reversed gives 'ORDAIN'.
Can you help me to learn more?
(Other definitions for ordain that I've seen before include "Invest with ministerial authority" , "Rule" , "frock" , "Either prescribe" , "Appoint as priest" .)