paint cup clogged

I use Tamiya Acrylics exclusively.

I always flush Windex through my airbrush, (the amonia in the Windex will disolve acrylics like anti-matter  )

I also blast a few sprays down the tube into the cup, and let it soak for a few minutes while I dismantle my airbrush, then I spritz all the parts with windex and rinse with water, finally rinsing out the cup. 

Works great and keeps the air and paint flowing. 

Yeah then I'd poor some window cleaner in a jug or something and let it soak a few hours.

 I keep the cans coffee comes in. The smaller ones fit most everything and take up less space. And label them "thinner", "Bleach", etc.

By no stretch of the imagination am I an expert but I do have some ideas.

1. soak it in opropriate cleaner. Window cleaner, paint thinner, whatever cuts what you were last painting with.

2. use toothpicks and pipe cleaners.

3. If all else fails could toss it and order a new one but I think with enough soaking and scrubbing it'll clean up.