Runner finally running relay remarkably well (6)
I believe the answer is:
rarely
'remarkably well' is the definition.
Both the answer and definition are adverbs. Maybe they are linked in a way I don't understand?
'runner finally running relay' is the wordplay.
'finally' says to take the final letters.
'running' indicates anagramming the letters (the letters run around to different places).
The last letter of 'runner' is 'r'.
'relay' anagrammed gives 'arely'.
'r'+'arely'='RARELY'
Can you help me to learn more?
(Other definitions for rarely that I've seen before include "when hundred-to-one horse wins?" , "Not done or occurring very often" , "Gas used in fluorescent signs" , "very well" , "once in a blue moon" .)