Such a point figures in a deal, it seems (7)
I believe the answer is:
decimal
'such a point' is the definition.
(I've seen this in another clue)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for decimal that I've seen before include "fraction" , "Claimed, wrongly, to have this currency" , "A point in maths" , "Using powers of ten" , "Relating to ten" .)