The initial idioms of the letter A

be like painting the Forth Bridge	be like rearranging (the) deckchairs on the Titani
be like talking to a brick wall	be like two peas in a pod
be locked in a time warp	be long in the tooth
be looking for trouble	be lost for words
be made for	be made of sterner stuff
be man enough	be neither fish nor fowl
be neither one thing nor the other	be new to the game
be nip and tuck	be no ball of fire
be no fool	be no great shakes
be no joke	be no laughing matter
be no match for	be no oil painting
be no picnic	be no screaming hell
be no slouch	be no spring chicken
be none the wiser	be not a bed of roses
not anything to write home about	be not for the faint-hearted