sporting man vs gambler

sporting man and gambler both are nouns.

Word	Noun	Adjective	Verb	Adverb
sporting man	Yes	No	No	No
gambler	Yes	No	No	No

As nouns, gambler is a hypernym of sporting man; that is, gambler is a word with a broader meaning than sporting man:

sporting man: someone who leads a merry existence; especially a gambler on the outcome of sporting events
gambler: a person who wagers money on the outcome of games or sporting events

sporting man (noun)	gambler (noun)
someone who enjoys outdoor activities	a person who wagers money on the outcome of games or sporting events
someone who leads a merry existence; especially a gambler on the outcome of sporting events	someone who risks loss or injury in the hope of gain or excitement