Possible Clues:

• Bet you could carry this, of course
• Bear with betting system
• Gambling device - a little one requiring a key
• The drink 'e will find at 1 across
• Drag small child home, finally
• Carry a little child - there's point to that
• Bag carried appears to be hump
• Such a carry-on at the race course!
• Carry on course
• Drag; betting system