Related Clues:

• Piece of paper to gain entry
• Slip showing payment of entrance fee
• Slip to show payment of entrance fee
• Slip showing payment of fee
• It entitles the bearer, to enter perhaps
• Tag showing fare or fee
• Printed piece of paper for admission as to theatre
• You've got to buy one for the kit, etc.
• Watch the sound of it? I'll buy that one
• Mark it as OK, by the sound of it, for travel
• Having bought it, one might make a mark against it, by the sound of it
• Pay for it to make the watch go, by the sound of it
• 'Mark it, by the sound of it, to get yourself a seat, perhaps (6)'
• Admits one may be punched on a train
• What a conscript wants is new kit etc