Make a break in the flow of - DISRUPT
Nauseating - PUTRID
Make - FASHION
Clumsy and stupid - OAFISH
"Nature", not "nurture" - GENETIC
Tempt - ENTICE
A whole note fills it - MEASURE
C.V. - RESUME
Bright, onstage - SPOTLIT
Type of firearm - PISTOL
Kitchen tool - UTENSIL
Lend an ear - LISTEN
Leftover letters: M S N G A T U
Passcode: MUSTANG