Answer: mellowed

AnswerCrossword Clue
MELLOWED.. out (relaxed)
MELLOWEDRelaxed, with "out"
MELLOWEDBecame less harsh
MELLOWEDRipened.
MELLOWEDAged
MELLOWEDChilled
mellowedMELLOW, to make mature (fully developed, also MATURATE)
mellowedMake or become mellow