Volunteer involved with region in Persian protests (5,10)
I believe the answer is:
green revolution
'volunteer involved with region in persian protests' is the definition.
I can't judge whether this defines the answer.
'volunteer involved with region' is the wordplay.
'involved with' indicates anagramming the letters (involved can mean confusing or complex).
'volunteer' mixed up with 'region' can make 'GREEN REVOLUTION'.
Can you help me to learn more?
(Other definitions for green revolution that I've seen before include "More yielded by villages in this" , "Islamic uprising?" , "pioneering farming techniques" , "that benefited Third World?" .)