Answer: minored

AnswerCrossword Clue
MINOREDStudied, but not so much?
MINOREDStudied on the side, with "in"
MINOREDStudied to a lesser degree, with "in"
MINOREDStudied secondarily, with "in"
MINOREDSpecialized to a secondary degree (in).
MINOREDTook as a second academic subject, with "in"
MINOREDStudied some, with "in"
minoredMINOR, to study a subsidiary subject at college
minoredto take courses in a minor subject