CCCWC January competition voters’ comments on Clue no. 32

A clue to PLAIN-JANE.
3 comments refer to this clue (from 3 competitors, 0 others)

Here is the text

Comments on the clue

1.	A bit random – am I supposed to be surprised by the absence of such an item?
2.	Works technically, but for the surface to be convincing, should there necessarily be one such?
3.	Weak surface, and does plane really = flat?