Possible Clues:

• Promise place shortly will be protected by eg fencing
• Information in spread for use of weapons
• Ultimate in pretentiousness, crossword setter's art, the finesse of a swashbuckler
• Second pun -- could one be foiled by it?
• Point to puns, like fencing
• Fencing — ’s my sport?
• Brand management? Singular punning here
• Ripostes here, at the heart of basic puns
• Fencing spread out to surround notice
• Drama underlying second promise to provide fencing