Answer: heart

AnswerCrossword Clue
HEARTTin Woodman's request
HEARTRed card
HEARTValentine symbol
HEARTIt "has its reasons which reason knows nothing of": Pascal
HEARTCenter
HEARTSpirit
HEARTIt beats, working
HEART"Damn Yankees" song
HEARTBest of the artichoke
HEARTPart of a suit
HEARTTin Woodman's desire
HEARTCore
HEARTCentral section
HEARTValentine's Day shape
HEARTOne in a red suit
HEARTVital pump
HEART"Member" of the Four-H Club
HEART"Nothin' At All" rock group
HEARTArtichoke center
HEARTChest beater
heartto hearten (to give courage to, also HARTEN)
HEARTWhat ya gotta have?
HEARTArtichoke morsel
HEARTTicker
HEART"Crazy on You" band
HEARTWhat "you gotta have"
HEARTIntrepidity
HEARTWhat ya gotta have
HEARTDamn Yankees song
HEARTTin Man's desire
HEARTNucleus
HEARTInnermost part
HEARTTexter's "less than three"?
HEARTPart 4 of quote
HEARTCandy-box shape
HEARTGist
HEARTAtrium site
HEARTCourage
HEARTKind of murmur
HEARTSoul's partner