11.   Then he got into his white Olds and drove off to clear his head.

12.   A good walk might clear my head.

13.   It would help to clear her head in readiness for whatever Lou had to say.

14.   She cleared her head of Rory, all that nonsense.

15.   I was still breathing hard, trying to clear my head with oxygen.

16.   The lowest tier of planks cleared his head by at least a foot.

17.   If nothing else, it would help to clear her head and, just now, she relished the thought of being alone.

18.   She needed the hot draught of caffeine to clear her head.

19.   And when he gets drunk and then goes on a midnight drive to clear his head, he has an accident that leaves him with amnesia.

20.   Arafat even took an hour-long bicycle ride the other day to clear his head and, presumably, contemplate the prospects for peace.