Prohibition popular with non-drinker hiding assorted cider (9)
I believe the answer is:
interdict
'prohibition' is the definition.
(thesaurus)
'popular with non-drinker hiding assorted cider' is the wordplay.
'popular' becomes 'in'.
'with' means one lot of letters go next to another.
'non drinker' becomes 'tt' (Teetotaller abbreviation).
'hiding' means one lot of letters goes inside another.
'assorted' is an anagram indicator.
'cider' with letters rearranged gives 'erdic'.
'tt' going around 'erdic' is 'terdict'.
'in'+'terdict'='INTERDICT'
(Other definitions for interdict that I've seen before include "Credit tin (anag) - ecclesiastical sanction" , "Prohibit, forbid" , "Prohibit - tin credit (anag)" , "Court order" , "An authoritative prohibition, maybe by church" .)