Answer:

universities

AnswerCrossword Clue
UNIVERSITIESMeccas for scholars
UNIVERSITIESThey're staffed with doctors
UNIVERSITIESHarvard and MIT, e.g.
UNIVERSITIESClemson and others
UNIVERSITIESInstitutions of higher learning