Record is within a couple of figures (4)
I believe the answer is:
disc
'record' is the definition.
(eg a CD, compact disc)
'is within a couple of figures' is the wordplay.
'within' means one lot of letters goes inside another.
'a couple of figures' becomes 'dc' (I am not sure about this - if you are sure you should believe this answer much more).
'is' placed inside 'dc' is 'DISC'.
Can you help me to learn more?
(Other definitions for disc that I've seen before include "Layer of cartilege between vertebrae" , "'Round, flat shape (4)'" , "Capital of India" , "Flat, circular plate - record" , "Sound recording" .)