1.   Chris went for a short walk to clear his head.

2.   Fenn cleared his throat, wishing his head could be cleared as easily.

3.   Gao Yang recalled that the wall barely cleared his head at the time.

4.   He wants a few days to clear his head.

5.   I go for a long walk at lunchtime to clear my head.

6.   If not, the cold would clear his head.

7.   It had very little warmth but the chilly air was helping to clear my head.