THEME: intrusive EL… [ Today's title "Subway Series" is clever, but oddly an el is an "elevated" track and a subway is below ground]
GOOD ONES: "I say, lovely places to worship"? JOLLYGOODCHAP
ELS
Ones who control the markets? GROCERYCART
ELS
What to grab for an early morning flight? BAG
ELSANDBAGGAGE
Tiger's front and back? NINES [a thought animal not golfer]
Lady's business? AVON [true both ways: an Avon Lady sells to a lady --- mostly]
Makeup artist? LIAR [not the Avon Lady]
Frequent child companion? MADONNA ["Madonna and Child"]
Maximum trio? EMS [I'm always late on the uptake when the clue refers to letters of the word]
World carrier ATLAS [I thought airline {a number of mythologic references today}]
BTW: Half a historic bomber ENOLA [I'd have gone with "Gay bomber?"]
Squirrel away AMASS [amass does not suggest hiding]
OTRA is not used in English.
I enjoyed the wide variety of topics: the world in a 21x21 grid.
RATING:

Three grins = Loved it; Two grins = Enjoyed it; One grin = A bit bland for my taste; One teardrop = Not much fun