Gym in Parisian street making money (5)
I believe the answer is:
rupee
'money' is the definition.
(currency of India)
'gym in parisian street' is the wordplay.
'gym' becomes 'pe' (short for Physical Education).
'in' means one lot of letters goes inside another.
'parisian street' becomes 'rue' ('street' in French).
'pe' going into 'rue' is 'RUPEE'.
'making' acts as a link.
(Other definitions for rupee that I've seen before include "Currency of the subcontinent" , "Indian money unit" , "low cost in Pakistan?" , "foreign currency" , "11 [LOLLY] in Kerala" .)