CCCWC January competition voters’ comments on Clue no. 1

A clue to PERCH.
2 comments refer to this clue (from 2 competitors, 0 others)

Here is the text

Comments on the clue

1.	I don't like A = PER even if it is allowed
2.	Several competitors have used per(1)which is a preposition as the indefinite article. Unacceptable IMHO