Surfacing with the writer, a nut! (9)
I believe the answer is:
macadamia
'nut' is the definition.
(type of nut)
'surfacing with the writer a' is the wordplay.
'surfacing with' becomes 'macadam' (I can't explain this - if you can you should believe this answer much more).
'the writer' becomes 'I' (the person who is writing these clues).
'macadam'+'i'+'a'='MACADAMIA'
Can you help me to learn more?
(Other definitions for macadamia that I've seen before include "Australian tree with edible nuts - a CIA madam (anag)" , "Am I a cad, ma? (anag) - Australian nut tree" , "Edible nut" , "(Of drug) causing dependency" , "Nut-bearing tree" .)