Peter —, 1964 Olympic 800m and 1,500m gold medallist (5)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
snell
(Other definitions for snell that I've seen before include "Lynda --, character in The Archers" , "sharp, concerning the wind" , "man of the law" , "Keen Scottish" , "Soprano Eleanor" .)