Possible Clues:

• '__ That a Shame'
• ''___ That a Shame''
• Is not, informally
• ''___ it the truth!''
• 'If it ___ broke ...'
• '___ it the truth?'
• '___ I a stinker?'
• ''Porgy and Bess'' contraction
• Grammarian's bane
• ''___ that the truth!''