Answer:

lowkey

AnswerCrossword Clue
LOWKEYUnderstated
LOWKEYNot at all intense
LOWKEYSubtle
LOWKEYSubdued
LOWKEYHardly ostentatious
LOWKEYSubdued in manner
LOWKEYLike a night in, say
LOWKEYCasual ... or a hint to the answers to the five starred clues