Ada Limón, for one (4)
I believe the answer is:
poet
'ada limon for one' is the definition.
(I know that Ada Limn has the occupation poet)
This is all the clue.
(Other definitions for poet that I've seen before include "Pound, say" , "Bard" , "'Paul Muldoon or Paula Meehan, say (4)'" , "Masefield, for instance" , "Tope with a versifier" .)