Greatly enjoy leading Formula One race, say? (3,2)
I believe the answer is:
lap up
'greatly enjoy' is the definition.
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for lap up that I've seen before include "Delight" , "Eagerly enjoy" , "of future monarch?" , "Accept with obvious pleasure" , "Relish (with the tongue?)" .)