Answer: orchestral

AnswerCrossword Clue
ORCHESTRALDescribing some concerts
ORCHESTRALSuitable for the Boston Pops
ORCHESTRAL100 needed in rare Holst arrangement for a lot of musicians (10)
orchestralrelating to or composed for an orchestra also ORCHESTRIC
orchestralWritten for an orchestra to play
orchestralOf or relating to an orchestra