First takes this money order, revolutionary symbol (9,4)
I believe the answer is:
chequered flag
'first takes this' is the definition.
(a motor racer overtaking the flag gets first place)
'money order revolutionary symbol' is the wordplay.
'money order' becomes 'cheque' (I've seen this before).
'revolutionary' becomes 'red'.
'symbol' becomes 'flag' (flag is a kind of symbol**).
'cheque'+'red'+'flag'='CHEQUERED FLAG'
(Other definitions for chequered flag that I've seen before include "Standard" , "which is brandished after course complete" , "Signal at end of Grand Prix race" , "Motor race ender" , "seen at end of race" .)