Pencil-and-paper game (4)
I believe the answer is:
dots
'pencil-and-paper game' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for dots that I've seen before include "Tiny circles" , "Short signals in Morse cods" , "Shorter signals in the Morse code" , "Small marks" , "Very small round shapes" .)