Where data is on disc or on form (2,3,6)
I believe the answer is:
in the groove
'where data is on disc or' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.
'form' is the wordplay.
I cannot really see how this works, but
'form' could be 'groove' (groove is a kind of form) and 'groove' is present in the answer.
The remaining letters 'inthe' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
'on' acts as a link.
Can you help me to learn more?
(Other definitions for in the groove that I've seen before include "Playing well" , "Performing confidently (dated, colloq.)" , "In excellent form: up-to-date, fashionable" .)