Better to do this in tennis than golf (4,4)
I believe the answer is:
drop shot
This clue could be a double definition.
'better to do this in tennis than' is the first definition.
Although both the answer and definition are singular nouns, I don't understand how they can define each other.
'golf' is the second definition.
The definition and answer can be both acts as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
(Other definitions for drop shot that I've seen before include "strong highball? Hardly" , "Stroke" , "One may land in court" , "Hit (in tennis, squash) awkward to return" .)