Language shows answer - Frank is a problem (9)
I believe the answer is:
afrikaans
'language' is the definition.
(Afrikaans is an example)
'answer frank is a problem' is the wordplay.
'answer' becomes 'a' (abbreviation eg in Q and A).
'problem' is an anagram indicator.
'frank'+'is'+'a'='frankisa'
'frankisa' with letters rearranged gives 'frikaans'.
'a'+'frikaans'='AFRIKAANS'
'shows' is the link.
(Other definitions for afrikaans that I've seen before include "Boer language" , "Dutch relative" , "Tongue used in Africa" , "Southern language derived from Dutch" .)