### Clue: Antisocial guy finally read short book (5)
### Answer: DWEEB 
 ### Explanation: Definition: Antisocial guy
  D(last letter of,finally "read") + WEE(small,short in length, area or volume) + B(abbrev. for book).
Answer:  Slang for an eccentric person or one awkward in a social evironment , antisocial in that sense, and not in the pathological sense, which would be too harsh a definition.