Crossword clues for Fastnesses.:FASTSConducts a hunger strikeFASTAbstainFASTSecurelyFASTKind of trackFASTWasting no timeFASTLike a cheetahFASTSkip sustenanceFASTRamadan ritualFASTObserve Yom KippurFASTCompletely cut caloriesFAST__ Eddie FelsonFASTSPeriods of self-denialFASTSObservances on Yom Kippur and Tisha B'AvFASTLike Flo-JoFASTYom Kippur ritualFASTSPrepares for some blood work, maybeFASTIn high gearFASTTake part in a hunger strikeFASTEDObserved a religious holiday, perhapsFASTYom Kippur observanceFASTINGPreparation for some blood testsFASTHunger protestFASTSecureFASTEat nary a morselFAST____ Eddie FelsonFASTRapidFASTSGoes on strike, in a wayFASTHe pulled a ___ one!FASTOn the doubleFASTQuickFASTSProtestors' deprivationsFASTLike Usain Bolt, aptlyFASTEDDidn't take sides, e.g.FASTGotta go ___! (Sonic the Hedgehog catchphrase)FASTSPrepares for surgery, likelyFASTPrepare for surgery, sayFASTBreakneckFASTCrash dietFASTSDoesn't take anything inFASTFirmly fixedFASTLike a clipper, in its dayFASTMore than dietFASTWell-connected?FASTSForgoes foodFASTSCrash dietsFASTAdjective for the Road RunnerFASTLike Randy Johnson's pitchesFASTGo without foodFASTEDAbstained from eatingFASTHunger strike