Crossword puzzle clue "hint of remorse"

Hint of remorse

Hint (and a hint to this puzzle's theme)

"Mrs. Frisby and the Rats of ___" (classic 1971 children's book based on experiments at the National Insistute of Mental Health, hint hint)

Something your poetry teacher might assign you to write about a particularly inspirational poetry teacher you've had *hint* *hint

Feeling guilt or remorse

Symbol of remorse

Show remorse

Source of buyer's remorse