No aimless activity for selected doctors? (6,8)
I believe the answer is:
target practice
'no aimless activity' is the definition.
'target practice' can be an answer for 'activity' (target practice is a kind of activity). I am unsure of the 'no aimless' bit.
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for target practice that I've seen before include "Learner's shooting session" , "Working on aim" , "aiming to improve with this?" .)