Using all the letters you get: climant
Using all the letters you get: saguaro
There is no 7-letter word using these letters, but there are these two 6-letter words:adroitdiatom
You cannot make any words with seven letters using these letters. The longest word you can make is honda.
There is no nine letter word in English using those letters; you can make the eight letter words hotsauce and cathouse.
effects
Mobster.
ounce,
carmaker
"BRIBEE"
Special.
pikake