Columnist from Guyana not wrong (5,4)
I believe the answer is:
agony aunt
'columnist' is the definition.
(I know that agony aunt is a type of newspaper columnist)
'guyana not wrong' is the wordplay.
'wrong' indicates anagramming the letters.
'guyana'+'not'='guyananot'
'guyananot' anagrammed gives 'AGONY AUNT'.
'from' acts as a link.
(Other definitions for agony aunt that I've seen before include "Columnist who advises on personal or romantic matters, like pained relative" , "Newspaper problems columnist" , "Adviser on personal problems" , "Newspaperwoman who solves personal problems" , "sympathetic advisor" .)