Possible Clues:

• Individual’s dreadfully insolent gesture at first
• Give information and reveal lonely heart, perhaps
• The only one in a suit wearing a vest?
• Come clean and spill the beans -- his loss leaves a void
• Stolen gin (anag.)
• Perhaps lonely heart to spill the beans twice
• Bachelor wearing vest
• In bridge, a holding of one card only in a suit
• Spinster may feel warmer with this
• It's on the cards that this might be just one weight