10: 'I'm better than you' sort
23: 'I'm Sorry' singer Brenda
24: Like any number finishing with '9'
25: Remove graphite or graffiti
34: Painful hospital development
37: English poet Alexander
38: Professionals who might get your back up?
43: Get ready for a fight
51: Turn on the waterworks
54: SWAT team specialists
67: Scrapes and scratches