Government of revolutionary African country seizing this writer (7)
I believe the answer is:
regimen
'government' is the definition.
(I've seen this before)
'revolutionary african country seizing this writer' is the wordplay.
'revolutionary' says the letters should be written backwards.
'african country' becomes 'niger' (Niger is an example).
'seizing' is an insertion indicator.
'this writer' becomes 'me' (the person who is writing these clues).
'niger' in reverse letter order is 'regin'.
'regin' going around 'me' is 'REGIMEN'.
'of' acts as a link.
(Other definitions for regimen that I've seen before include "recommended diet" , "Course of diet, therapy" , "Method of working" , "Therapeutic programme (of diet and exercise)" , "Disciplined system" .)