Some expert activity, right, like hang-gliding? (7,5)
I believe the answer is:
extreme sport
'right like hang-gliding?' is the definition.
I know nothing about this answer so I cannot tell whether this works.
'some expert activity' is the wordplay.
I cannot really understand how this works, but
'activity' could be 'sport' (sport is a kind of activity) and 'sport' is found within the answer.
The remaining letters 'extreme' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for extreme sport that I've seen before include "potentially dangerous activity" , "gladiatorial combat, in a way" .)