THEME: computer keys (abbreviations) used at the outset of common phrases
GOOD ONES: Place to see part of {theme} PC Keyboard [itself an abbr.]
Wave catcher? EAR [audio waves]
Letters from Greece ETAs
Jam ingredients? AUTOS [traffic jam]
Nurses at a bar SIPS [I got the image of a WWII bar with GI's]
Yodeler's range? ALPS [mountains, not voice]
BTW: That, in Spain
ESA [but not in the U.S.]
Shaver LAD [it occurred to me that shavers probably don't]
I enjoyed the interesting cluing throughout.
RATING:
Three grins = Loved it; Two grins = Enjoyed it; One grin = A bit bland for my taste; One teardrop = Not much fun