sporting lady vs hooker

sporting lady and hooker both are nouns.

Word	Noun	Adjective	Verb	Adverb
sporting lady	Yes	No	No	No
hooker	Yes	No	No	No

As nouns, hooker is a hyponym of sporting lady; that is, hooker is a word with a more specific, narrower meaning than sporting lady:

sporting lady (noun)	hooker (noun)
a woman who engages in sexual intercourse for money	a prostitute who attracts customers by walking the streets
	(rugby) the player in the middle of the front row of the scrum who tries to capture the ball with the foot
	a golfer whose shots typically curve left (for right-handed golfers)