Range with a figure in pounds (9)
I believe the answer is:
apennines
'range' is the definition.
(I know that Apennines is a range)
'a figure in pounds' is the wordplay.
'figure' becomes 'nine' (a number of figure).
'in' means one lot of letters goes inside another.
'pounds' becomes 'pens'.
'nine' going within 'pens' is 'pennines'.
'a'+'pennines'='APENNINES'
'with' acts as a link.
(Other definitions for apennines that I've seen before include "Italian mountains" , "Italian mountain chain" , "European range" , "Italian mountain range" , "Great mountain range in Italy (9)" .)