THEME: first word of phrase can define MATCH
GOOD ONES: Smoker's superstitious no-no {& theme} THREE ON A MATCH [and there are three long answers]
One in a semi circle? CBER [the semi is a truck, and truckers used CB radios, and circle here means group]
1950's-70's TV heroine LASSIE [I was thinking women, not dogs, and not male dogs which Lassie happened to be]
Matter of fact DATUM [not matter-of-fact]
Ground breaker HOE [not groundbreaker]
BTW: Crossing ELROY and SPYRI at the Y is a bit unsporting as neither is a household name.
RATING:
Three grins = Loved it; Two grins = Enjoyed it; One grin = A bit bland for my taste; One teardrop = Not much fun