Stereotypical D&D fan (4)

I believe the answer is:

nerd

(Other definitions for nerd that I've seen before include "Boring person" , "Computer geek?" , "Socially inept but knowledgeable person" , "In slang, a foolish or uninteresting person" , "Student who is ridiculed for studying excessively" .)

I've seen this clue in the Universal.

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