
1) Aches 2) Acumen 3) Good sense 4) Hurts 5) Intelligence 6) Knowhow 7) Sense 8) Sled 9) Stings
Found on
https://www.crosswordclues.com/clue/smarts

1) Acts as an irritant on 2) Asset on the street 3) Braininess 4) Brainpower 5) Brains 6) Brains or intelligence 7) Causes sharp pain 8) Common sense 9) Feels sore 10) Gray matter 11) Hurts 12) Hurts a lot 13) Hurts or stings 14) Intellect 15) Intelligence 16) Is painful 17) Know-how 18) Savviness 19) Savvy
Found on
https://www.crosswordclues.com/clue/smarts
[The Simple Model of the Atmospheric Radiative Transfer of Sunshine] SMARTS (Simple Model of the Atmospheric Radiative Transfer of Sunshine) is a computer program designed to evaluate the surface solar irradiance components in the shortwave spectrum (spectral range 280 to 4000 nm) under cloudless conditions. The program, written in FORTRAN,...
Found on
http://en.wikipedia.org/wiki/SMARTS_(The_Simple_Model_of_the_Atmospheric_Ra

Smarts is British and American slang for know-how, intelligence, or wits.
Found on
http://www.probertencyclopaedia.com/browse/ZSB.HTM
No exact match found.