Tight Fitting Drawer - What to do?

Hi, this question may not strictly belong here but I'll ask it.
What do I do about a desk drawer which fits too tightly in the case? I don't want to start pulling off the veneer on the face of the case or damaging the drawer.

Image1 shows the drawer pulled out a bit. In this position it slides easily until Image 2 where the drawer front meets the case.
This is what I've done so far:

• Verified it's the draw sides which are tight and not the top / bottom of the drawer
• Clamped across the front of the drawer to 'pull' the sides closer (no help)
• Waxed the sides of the drawer and the sides of the case (no help)

Before I start 'shaving' the sides of the case I'd like to know how others have fixed these types of problems. As always, thanks for your help!

 

The bottom of the drawer looks like newer wood, possibly a replacement that was not trimmed enough, or has swelled more than the older wood.

 

HA... I was going to suggest that.....because I've done that...... but then thought the furniture guys here would jump me !!

Thank you , Davey !!!!!

 

Possibly a bit of sandpaper on the new wood first.

 

Sand down the side of the drawer.

 

Figure out where it is binding before using Vaseline (ick, unless used very lightly). You already tried wax, which is what I would have used. Slip a piece of paper on the sides one at a time to check for binding and you’ll see where the problem is.

Pic does make it look like culprit is the replacement drawer runner on the bottom, if so sand or hand plane the runner to your hearts content. I wouldn’t sand whole drawer side, though. Is it possible you glued the carcass too tight or at an angle when rebuilding it? If not, PO could have done so, so watch out for that too. Often a PO repairs need to be undone before a proper repair can be made.