Board Thread:The Reference Desk/@comment-165.228.133.90-20130126074529

can anyone please help with the following unsolvable,impossible clues.

26 across - accessory favoured by hc clements - s*a*s

28 across - possible acronym for organisation run by one of the doctor's former companions - a**

PLEASE HELP ME BEFORE I GO ABSOULTELY INSANE  