Two figures working together in IT (6,6)
I believe the answer is:
binary system
'two figures working' is the definition.
The definition suggests a singular noun which matches the answer.
'together in it' is the wordplay.
I cannot really understand how this works, but
'in' is present in the answer.
'it' could be 't' (abbreviation. e.g. in 'tis) and 't' is located in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for binary system that I've seen before include "where two stars are" , "What computers use to calculate" , "Use this method for getting information computerised" .)