Times cryptic chess clue

[Paul Habershon]

The Crossword Help Forum site has a post mentioning this clue in yesterday's Times:

One dissenting from popular line plugged by chess authority (7)

INFIDEL

So solvers are expected to know FIDE, though googling 'chess authority' brings it up immediately.

[Paul Habershon]

This was my LOI (last one in) yesterday:

Stands apart from British men put in the corner (5)

ROOKS

Definition: men put in the corner

Cryptically
brooks=stands (e.g. brooks no opposition)

Remove B for British ('apart from British')