Put sport back in modest setting, showing consideration (8)
I believe the answer is:
courtesy
'consideration' is the definition.
(thesaurus)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for courtesy that I've seen before include "Respectful and considerate behaviour" , "Good manners" , "good breeding" , "Civility, politeness" , "Politeness and respect for others" .)