to mend clothes
裰 centers on repairing or mending clothes, specifically by stitching or patching.
裰 combines the clothing radical 衤 with the phonetic component 叕, which likely contributes the sound and may relate to joining or connecting, fitting the idea of mending clothes.
The clothing radical 衤 beside 叕 suggests stitching together torn fabric. Picture a needle pulling thread through layers of cloth to mend a garment.
For タツ, imagine mending clothes with quick, precise tacks: tack -> タツ, as you tack the fabric back together.