[1] : WordNet (r) 2.0

clear out
     v 1: move out and leave nothing behind
     2: clear out the chest and lungs; "this drug expectorates
        quickly" syn: expectorate, drive out
     3: empty completely; "we cleaned out all the drawers" syn: clean
        out
see also:
expectorate drive out clean out 

[2] : Moby Thesaurus II by Grady Ward, 1.0

125 moby thesaurus words for "clear out":
   abscond, absquatulate, abstract, be off, beat a retreat, beat it,
   begone, bleach, blow, blow out, bolt, bowdlerize, cast off,
   cast out, chuck, clean, clean out, clean up, cleanse, clear,
   clear away, clear off, clear the decks, cut and run, cut out,
   decamp, defecate, delouse, depart, deplete, deport, depurate,
   desert, deterge, dispose of, drain, dry-clean, dust, dust off,
   eject, elide, eliminate, elope, empty, empty out, eradicate,
   evacuate, exhaust, exile, expatriate, expel, expurgate, flake off,
   flee, fly, freshen, fugitate, get, get going, get lost, get out,
   get quit of, get rid of, get shut of, git, go awol, hightail,
   hit the road, jump, jump bail, kite, levant, liquidate, lustrate,
   make off, make yourself scarce, outlaw, pick out, purge, purify,
   reform, remove, root out, root up, run, run away, run away from,
   run away with, run for it, run off, scavenge, scour out, scram,
   shove off, show the heels, skedaddle, skip, skip out,
   slip the cable, spruce, steam-clean, strike off, strike out,
   sweep out, sweeten, take french leave, take flight, take off,
   take to flight, take wing, throw over, throw overboard, tidy,
   turn tail, unclog, unfoul, vamoose, vent, void, weed out, whiten,
   wipe, wipe off, wipe out, wipe up

Bale Out >> B Words
Bale Out, definition of term: Bale Out
bale+out_pag1.html

Bawl Out >> B Words
Bawl Out, definition of term: Bawl Out
bawl+out_pag1.html

Bear Out >> B Words
Bear Out, definition of term: Bear Out
bear+out_pag1.html

Bail Out >> B Words
Bail Out, definition of term: Bail Out
bail+out_pag1.html

Back Out >> B Words
Back Out, definition of term: Back Out
back+out_pag1.html

Air Out >> A Words
Air Out, definition of term: Air Out
air+out_pag1.html

Ask Out >> A Words
Ask Out, definition of term: Ask Out
ask+out_pag1.html

Act Out >> A Words
Act Out, definition of term: Act Out
act+out_pag1.html