Dinners for non-Ximenean cruciverbalist geeks? (5)
I believe the answer is:
nerds
'geeks?' is the definition.
(I've seen this before)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for nerds that I've seen before include "They can be boringly studious, perhaps lacking social skills" , "Geeks" , "Boringly studious people" , "People considered boring because of obsessive hobbies or narrow solitary interests" , "Boringly studious types" .)