Ah, 6 is A + ENVY + TRAIN = ENVINYATAR, 'the Renewer', or Aragorn at his most Jesusy.
7 starts with R, so looks like Rose or Rosie; 'Willow loses incentive' sounds like you remove will to get 'ow', but I can't for the life of me see a way from there to an answer.
hS
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