Remove stones from pockets, reversing element of race strategy (3,4)
I believe the answer is:
pit stop
'race strategy' is the definition.
I don't know anything about this answer so I can't judge whether this works.
'remove stones from pockets reversing element' is the wordplay.
I cannot quite see how this works, but
'remove' could be 'pit' (pitting is a kind of removing) and 'pit' is present in the answer.
'stones' could be 'st' (I've seen this in other clues) and 'st' is found within the answer.
'from' could be 'o' (I've seen this in other clues) and 'o' is found within the answer.
'element' could be 'p' (P is an example) and 'p' is located in the answer.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
'of' acts as a link.
Can you help me to learn more?
(Other definitions for pit stop that I've seen before include "brief service" , "F1 race feature" , "When tripping, break" , "Break for fuel etc." , "Break during motor race" .)