Possible Clues:

• Take advantage of an activity that someone else started (3,2,2,3,3)
• Participate legislatively? (3,2,2,3,3)
• At some stage, join a profitable venture? (3,2,2,3,3)
• '... to join in profitable activity, once that gent and I reach an arrangement' (3,2,2,3,3)
• Become involved so as to share benefits