Question Author
Thank you ProfessorM. (and NAC)
I did miss your earlier responses.
I tried anagram solvers for STIM... at first . They do not recognize this device.
Chambers Word Wizard is on the fritz for a while now.
My extra words are 13, 14, 16, 23, 31, 34, 40, 41, 1, 4,6,9,11, 21, 29 32, 35.
8a could be the 18th one. First word extra,
answer 3 letters for nothing + two for see reversed.
TCD does not have that word.
Last letters in 28, 29, 35 give me INE with the 8 letter girl's name.