Pecan nuts are too much for her
I believe the answer is:
ann
'her' is the definition.
(I've seen this before)
'pecan nuts are too much' is the wordplay.
'are too much' says the answer is hidden in the clue (the clue hides the answer plus unneeded letters).
'ANN' can be found hidden inside 'pecan nuts'.
'for' acts as a link.
(Other definitions for ann that I've seen before include "Lady's name" , "female" , "Girl" , "... Margret or Hathaway" , "Girl's name" .)