Researcher yet to cover outdoor sport (7)
I believe the answer is:
archery
'outdoor sport' is the definition.
'archery' can be an answer for 'sport' (archery is a kind of sport). I'm not sure about the 'outdoor' bit.
'researcher yet to cover' is the wordplay.
'to cover' indicates the answer is hidden within the clue (I've seen 'covered' mean this (the answer is covered up by the clue)).
'ARCHERY' is hidden within 'researcher yet'.
Can you help me to learn more?
(Other definitions for archery that I've seen before include "Bowman's sport" , "The sport of bowmen" , "Arrow-shooting" , "Bowmanship" , "The sport of shooting arrows with a bow" .)