Possible Clues:

• Join us to sneak out of Euston after fare avoidance
• Pin, tie or glue
• Button up, e.g
• Zip up, maybe
• Join football administrators’ team, one short?
• Might this help one to get more tight more quickly?
• Snap a snap on, say
• Fan crossing street, European, for tie
• "___ your seatbelts"
• Attach, perhaps with hardware that begins the answers to starred clues