Issue decree in Macedonia, dropping back (6)
I believe the answer is:
ordain
'issue decree' is the definition.
'ordain' can be an answer for 'decree' (I've seen this before). I'm not sure about the 'issue' bit.
'in macedonia dropping back' is the wordplay.
'in' indicates a hidden word.
'back' shows that the letters should be reversed in order.
'niadro' is hidden in the letters of 'macedonia dropping'.
'niadro' in reverse letter order is 'ORDAIN'.
Can you help me to learn more?
(Other definitions for ordain that I've seen before include "Decree or appoint to priesthood" , "frock" , "Appoint as priest" , "Make a decree" , "Destine" .)