Headmistress ignores disaster of the frills from sewing class (4)
I believe the answer is:
hems
'frills from sewing class' is the definition.
The definition and answer can be both man-made objects as well as being plural nouns.
Maybe there's a link between them I don't understand?
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for hems that I've seen before include "Stitched edges of cloth or garments" , "Stitched garment edges for Shem" , "Bottom edges turned under and sewn" , "Stitched borders" , "Fringes" .)