German mathematician’s way of working I captured in computer circuit (6)
I believe the answer is:
Here is my best explanation:
'german mathematician's' is the definition.
(August Ferdinand Mobius)
'way of working i captured in computer circuit' is the subsidiary indication.
'way of working' becomes 'mo' (I've seen this in other clues).
'captured in' means one lot of letters goes inside another.
'computer circuit' becomes 'bus'.
'i' inserted within 'bus' is 'bius'.
(Another definition for mobius that I've seen is "endless strip joints".)