Dorky sort (4)
I believe the answer is:
nerd
'dorky sort' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for nerd that I've seen before include "Flag on poles; wide (headline)" , "Socially inept but knowledgeable person" , "knowledgable geek" , "Boring person" , "Geek, anorak (sl.)" .)