Lyric discussion by white_stone_3 

Cover art for Not While I'm Around lyrics by Sweeney Todd: The Demon Barber of Fleet Street

You missed a part before Being close and being clever. Here it is

" Not to worry, not to worry I may not be smart, but I ain't dumb I can do it Put me to it Show me something I can overcome Not to worry, mum"

then its being close and being clever aint like being true