There is a total of 20376 clues beginning with pe
- Pet parrots' homes
 - Pet parrots' places
 - Pet participates at funeral?
 - Pet peeve
 - Pet peeve for PETA
 - Pet peeve, perhaps
 - Pet peeve?
 - Pet peeves
 - Pet peeves with 18-Across
 - Pet peeves?
 - Pet pendant
 - Pet perch
 - Pet pest
 - Pet pesterers
 - Pet pests
 - Pet phrase
 - Pet physician
 - Pet physician's deg
 - Pet place, sometimes
 - Pet plaint
 - Pet plant
 - Pet plant?
 - Pet pleas
 - Pet pleaser
 - Pet pony, perhaps
 - Pet portal
 - Pet predator that survived the Flood?
 - Pet prettifier
 - Pet problem
 - Pet problem that may prompt increased vacuuming
 - Pet problem?
 - Pet problems?
 - Pet product also used for tire traction
 - Pet product company acquires soft drink
 - Pet products brand
 - Pet project for a 14-Down
 - Pet project, perhaps
 - Pet project?
 - Pet protection agcy
 - Pet protection gp
 - Pet protection grp
 - Pet protection org
 - Pet protector
 - Pet protector letters
 - Pet protector of sorts
 - Pet protector, for short
 - Pet protector: acronym
 - Pet protectors
 - Pet protectors' grp
 - Pet protectors' org
 - Pet provider
 - Pet purchased in the Philippines?
 - Pet puss
 - Pet rabbit's abode
 - Pet rabbit's home
 - Pet rabbit's treat
 - Pet rat in a 1972 #1 song
 - Pet re-homing org
 - Pet received on Christmas, for many
 - Pet reindeer in "Frozen"
 - Pet rescue grp
 - Pet rescue org
 - Pet restraint
 - Pet restraints
 - Pet rock  
eg
 - Pet rock and hula hoop
 - Pet rock creator Gary
 - Pet rock or hula hoop
 - Pet Rock, eg
 - Pet Rock, famously
 - Pet rock, maybe
 - Pet rock, once
 - Pet rocks and Beanie Babies
 - Pet Rocks and Beanie Babies, etc, once
 - Pet rocks and hula hoops
 - Pet Rocks and Hula-Hoops
 - Pet rocks and mood rings
 - Pet rocks and mood rings, for two
 - Pet rocks and others
 - Pet rocks et al
 - Pet rocks or the Macarena, eg
 - Pet rocks, eg
 - Pet rocks, for one
 - Pet rocks, Furbys, etc
 - Pet rocks, hula hoops, etc
 - Pet rocks, once
 - Pet rodent
 - Pet rodent for some
 - Pet rodent's exercise gadget
 - Pet rodents
 - Pet safeguarding org
 - Pet safety org
 - Pet said to have nine lives
 - Pet savers' org
 - Pet saying?
 - PET scan particles
 - Pet shampoo target
 - Pet shellfish?
 - Pet shelter letters