Would you do me a favour?
I have a job for your cracked mind - She believes that she is very smart, but that she can't always express her thoughts properly. She also has an angelic-like appearance even though she isn't an angel.
Something for the sleight tongue - Has an accent and her voice is described as 'outlandish'
And the darkness that you hide - Had a dark history at the end of her time in Cherry Oak. Could also be a reference to how her halo only shines in the dark
Oh but do not worry! It is only a small thing - She is small at 14.3 h
Something only you can do
With your fair locks, ever endearing - Has fair hair.