The initial idioms of the letter A

to a fare-thee-well	a fashion victim
a fast talker	a fast track
a fat cat	a fat lot
a fat lot of good	a fate worse than death
a faux pas	favorite daughter
favourite daughter	a favourite son
a feather in cap	feather in (one's) cap
a feather in your cap	a feeding frenzy
a feel for	a femme fatale
a fender bender	a few
a few bricks shy of a load	few bricks short of a load
a few fries short of a Happy Meal	have a few kangaroos loose in the top paddock
bricks shy of a load	a few sandwiches short of a picnic
a few ticks	a fifth wheel
a fifty-fifty chance	a fig leaf