Boy, one receiving gold medal? (6)
I believe the answer is:
victor
'boy' is the definition.
'one receiving gold medal?' is the wordplay.
I cannot really see how this works, but
'one' could be 'i' (Roman numeral) and 'i' is present in the answer.
'gold' could be 'or' ('or' is the heraldic name for gold) and 'or' is present in the answer.
'medal?' could be 'vc' (Victoria Cross, military medal) and 'vc' is found within the remaining letters.
A single letter 't' remains 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 victor that I've seen before include "Champion" , "Meat; complain" , "Oh dear!" , "Winning contestant" , "Winner; boy's name" .)