Gramp

7 clues
Pa's pa
Pop's pop
Dad's dad
Grandpa, so to speak
Family man, familiarly
Family member, for short
Family member, familiarly
Similar answers:
Abamp
Aboutacropgrower
Aboveground
Abovegroundpool
Abovethegrime
Absolutegravity
Academicdegrees
Academicegree
Academicgrades
Academicprogram
Acgreen
Acowoncegrazed
Actofaggression
Actofgrace
Actorsgroup
Adamper
Adampersandal
Adamsgrandson
Adayatthegraces
Adcampaign