The anagram is "scales."
scales
The answer is scales. It's not a fish, it's something that has to do with a fish.
The letters spell the word geometrical.
The letters spell the word casino.
The letters spell the word "freelance."
Those letters will spell the word vinegar.
The letters can spell the word publications (or No, a publicist!).
The letters APTRUSIS spell the word "upstairs."
These letters unscramble to spell the word herbal.
The letters spell 'broccoli'.
The letters spell the word temples.
The letters spell the word obstruct.