Another easy word game

LENtils

ENTirely

TIRade

RADiator

DIAgonally

ALLigator

GATepost

POStillion

STIcking

KINdness

INDecent

DECompress

PREsident

inSIDers

IDEntified

ENTangle

ANGelic

LICentious

CENtrifugal

TRIplets