Answer: oldtimers

AnswerCrossword Clue
OLDTIMERS

Baseball alumni

OLDTIMERS

Vets

OLDTIMERS

Warhorses

OLDTIMERS
Whippersnappers' opposites
OLDTIMERS
Long-retired athletes
OLDTIMERSNonagenarians.
OLDTIMERSSenior members, employes, etc.
OLDTIMERSWorkers with seniority.
OLDTIMERSSundials?
OLDTIMERSExperienced hands
OLDTIMERSVeterans
OLDTIMERSSecondhand stopwatches?