Answer:

ACE

Answer	Crossword Clue
ACE	Duffer's dream
ACE	Early phone feature
ACE	Excellent serve

ACE	Expert
ACE	King beater
ACE	Top card
ACE	Breeze through
ACE	Bullpen standout
ACE	Club member?
ACE	First-class marksman
ACE	Great service

ACE	It can't be returned
ACE	Lendl's lulu
ACE	Super serve
ACE	Top pilot
ACE	Unbeatable card in war
ACE	Von Richthofen, for one
ACE	Come out on top
ACE	Good serve

ACE	Great service?
ACE	High card
ACE	It counts for 1 or 11 in Black Jack
ACE	Kiss guitarist
ACE	Point of no return
ACE	Suit top
ACE	Suit topper
ACE	Top-notch pilot

ACE	Blackjack card
ACE	Hole in one
ACE	King topper
ACE	.. Ventura, Pet Detective
ACE	Great service that's not so great for its recipient
ACE	One might be in the hole
ACE	Top hurler
ACE	Top starter

ACE	Seasoned pro
ACE	Unreturned serve
ACE	Star pitcher
ACE	Card needed for blackjack
ACE	This is the one