Possible Clues:

• An empty space is what one steers clear of
• Such a big hole is one one steers clear of
• Shuns, keeps away from
• Dodges when holding vacuum
• Because there's a space inside for skirts
• Ducks (out of)
• Doesn't pursue
• A hole is so big that one steers clear of it
• Keeps away or refrains from
• Steers clear of, dodges