Small fib about a rare, independent music maker? (7)

I haven't cracked this one yet — but the brilliant team at Fifteensquared have:

S (small) + LIE ("fib") around A + R (rare) + I (independent) Antonio Salieri (1750-1825) was an Italian composer who was suspected of poisoning Mozart after the younger man's death, an accusation that was pivotal to Peter Shaffer's play, Amadeus, which was made into an Oscar-winning film in the 80s.