Socially inept sort (5)
I believe the answer is:
dweeb
'socially inept sort' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for dweeb that I've seen before include "techie bore?" , "Geek" , "silly American" , "Boringly studious student" , "Antisocial guy" .)