Related Clues:

• Sustain retiring spy
• Illuminating point made in newspaper cutting
• Through-the-keyhole glimpse
• Break a yuletide rule
• Quick visual inspection
• Sneak ___ (preview)
• Cheat at blind man's buff
• Butcher's fine feeding stray from back of store
• Look between one's fingers
• Cheat in hide-and-seek
• Take a look, in a way
• Illuminating comment or brief reference, to the French
• Look to hold back
• Advance look, say
• ''Don't __!''