Lovely ground stroke in tennis (6)
I believe the answer is:
volley
'stroke in tennis' is the definition.
'volley' can be an answer for 'stroke' (volley is a kind of stroke). I am unsure of the 'in tennis' bit.
'lovely ground' is the wordplay.
'ground' is an anagram indicator ('grind' the letters into a new form).
'lovely' is an anagram of 'VOLLEY'.
Can you help me to learn more?
(Other definitions for volley that I've seen before include "Cannonade" , "A flight of missiles" , "Simultaneous discharge of a number of firearms" , "Shot played before the ball bounces" , "Salvo (of bullets)" .)