Answer: pledge

AnswerCrossword Clue
PLEDGETelethon donation
PLEDGEFraternity initiate
PLEDGEGuarantee
PLEDGEPromise solemnly
PLEDGEHostage
PLEDGEWarranty
PLEDGEBrother-to-be
PLEDGESchool recital
PLEDGESecurity
PLEDGE... of Allegiance
PLEDGEAllegiance avowal
PLEDGEPublic TV request
PLEDGEPromise to PBS
PLEDGEPublic TV donation
PLEDGEAssurance
PLEDGEBinding promise
PLEDGEPublic TV goal
PLEDGEMorning classroom ritual, often
PLEDGEWould-be brother
PLEDGEWord
pledgeto make a solemn, formal vow to abstain from intoxicating drink
pledgesolemn promise
pledgeto bind by solemn promise
pledgeto bind by pledge
pledgeto promise
pledgeto give as a pledge
pledgesomething delivered as security on a loan
PLEDGETelethon promise
PLEDGEProspective fraternity member
PLEDGEPromise
PLEDGEWord of honor
PLEDGEAid a fund drive
PLEDGEFrat candidate
PLEDGEPolish brand
PLEDGEOath
PLEDGEClassroom recitation
PLEDGEFurniture care brand
PLEDGEFraternity brother-to-be
PLEDGEProspective sorority member
PLEDGEFrat newbie