Disturbed twin - no idea throughout the country (10)
I believe the answer is:
nationwide
'throughout the country' is the definition.
I can't tell whether this defines the answer.
'disturbed twin no idea' is the wordplay.
'disturbed' is an anagram indicator (the order of letters is disturbed).
'twin'+'no'+'idea'='twinnoidea'
'twinnoidea' is an anagram of 'NATIONWIDE'.
Can you help me to learn more?
(Other definitions for nationwide that I've seen before include "for all of us" , "Across the whole country" .)