Buttigieg of Biden's Cabinet (4)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
pete
(Other definitions for pete that I've seen before include "-- Sampras, tennis ace" , "Small 14 [PETER JONES]" , "- Doherty, Babyshambles singer" , "- Seeger, US folk singer" , "- Sampras, tennis star" .)