Possible Clues:

• Rocket's cargo
• Clear America-on-line returning daughter for one of NASA's missions
• Reciting light verse is what provides income
• Revenue-earning cargo
• Business end of a missile
• Cargo, bombs, on e.g. plane
• Cargo that's a burden on salary
• Rocket's contents
• Passengers, cargo or bombs
• Passengers with cargo do a play in flight