Related Clues:

• Tiny cuts
• Fine cuts
• Thin apertures
• Narrow gaps
• Venting aids
• Long, narrow cuts
• Gill features
• Buttonholes, usually
• Mostly female punk band of the 1970s, with 'the'
• Buttonholes, essentially
• Cat's eyes, at times
• Tailor's vents
• Buttonholes, e.g
• Some vents
• Straight-and-narrow apertures