This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
襒 combines 衤 (clothing) with 敝, which likely contributes sound. The exact historical development is uncertain.
The left side 衤 suggests clothing, and the right side 敝 is a complex shape. Without a clear meaning, picture a rare, old-fashioned garment with an intricate pattern.
For ヘツ, imagine a tailor hemming a rare garment: hem -> ヘツ, and the clothing radical 衤 reinforces the scene.