Advice columnist Landers (3)
I believe the answer is:
ann
'advice columnist landers' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for ann that I've seen before include "eg Miss Widdecombe" , "woman" , "- Widdecombe MP" , "... -Margaret (film actress)" , "Lady's name" .)