I need some editing help....ANSWERED!!

Is the clip split?  'k' toggles clip mute for the selected clip ...

Expose layers and look there?

Worst case go into the audio folder to hunt out the file.

brundlefly
When you say "grayed out", do you mean the waveform has a dotted outline? If so, that's time range muting, and you can reverse it by sweeping the top half of the clip with the mute tool to unmute it. I'm not sure how that would happen just by mashing the keyboard, but it's the only way I know of to mute part of a clip without splitting it.
 
 

Thanks Brundlefly and gswitz.
I didn't get a chance to sit at my DAW last night, but will do so tonight.
 
I don't recall the audio clip having a dotted outline, but rather a greyed out area (i.e different in color than the rest of the clip) and only at the end of the clip.
 
The audio part of the (generic) pic below is a good example where the red line of part B is about the area that's greyed out and is also muted on playback. The clip isn't split up.......and the blue part plays just fine.  I'll try sweeping the clip and try to unmute tonight.......will post back.