Words that can be spelled with the letters in A C I L O P T R are:
idiolect
cdaidonit
The letters spell the word calked. They also spell the word lacked.
The letters 'lcodu' spell CLOUD.
cathode
You can spell calendar with those letters.
keys
disclaim
Those letters spell noodle.
The letters spell the 7 letter word endures. They also spell the word ensured.
Using all the letters in one word, Nothing.
drop, bore, to, be... no word contains all of these letters.
Words with your letters: raid, dial, ad, clad, aid, lard, car, card. There is one word that uses all your letters: radical.