Rural girl almost struggles to comprehend English, extraordinary! (9)
I believe the answer is:
irregular
'extraordinary' is the definition.
(thesaurus)
'rural girl almost struggles to comprehend english' is the wordplay.
'almost' means to remove the last letter (most of the word but not all of it).
'struggles' is an anagram indicator.
'to comprehend' means one lot of letters goes inside another (comprehend can mean to contain or include).
'english' becomes 'e' (abbreviation).
'rural'+'girl'='ruralgirl'
'ruralgirl' with its final letter removed is 'ruralgir'.
'ruralgir' is an anagram of 'irrgular'.
'irrgular' enclosing 'e' is 'IRREGULAR'.
(Other definitions for irregular that I've seen before include "Out of the ordinary" , "Rough - dishonest" , "Guerrilla fighter; not even" , "one of Holmes's Baker Street urchins" , "unprincipled" .)