Related Clues:

• Mark of a ruler
• Move slowly
• Rainfall measurement
• Measure
• See 21-Across
• See 49-Across
• Move cautiously
• See 63-Across
• Treat for the feet
• Go very slowly
• Tiny amount of progress
• Type of worm
• Rearranged chin that is part of a foot?
• Salon offering, familiarly
• Move in baby steps