Grab a citation about calculators (5)
I believe the answer is:
abaci
'calculators' is the definition.
(abacus is a kind of calculator)
'grab a citation about' is the wordplay.
'about' says the answer is hidden in the clue (the clue goes around or about the answer).
'ABACI' can be found hidden inside 'grab a citation'.
(Other definitions for abaci that I've seen before include "They can be counted on" , "Counting devices" , "sliding scales for calculation?" , "Early computers" , "help for summer" .)