tall clogs; high geta
Refers to geta (wooden clogs) with especially high supports, often associated with traditional footwear for rain or certain occupations. The cross-reference to 足駄 (ashida) indicates a specific style of tall geta.
See also: 足駄
In the old days, people would go out wearing tall geta on rainy days.
Compound of 高 (taka, 'high') + 足駄 (ashida, 'tall geta'). The exact historical derivation of 足駄 is uncertain, but it refers to a style of geta with high supports.