CCCWC May competition voters’ comments on Clue no. 16

A clue to ROSBIF.
3 comments refer to this clue (from 2 competitors, 1 other)

Here is the text

Comments on the clue

1.	Good attempt at an &lit., though 'rib' is a little strained.
2.	No indication of the French connection.
3.	This is a great surface, but the cryptic instruction is a bit too strained