I made a slight tweak to the clue to make it clearer, thanks! (Normally you wouldn't see this on one tag, it would be a list of sizes). This is what I get for forcing that little bit of fill in there :).
Maxish 🤓7:14 · 9 months ago
I tripped on this too, even after the clarification. It was my one bad square after filling in the grid (SMS instead of SML