Answer: interline

AnswerCrossword Clue
INTERLINETransfer from one carrier to another, as freight
INTERLINEInsert between rows of words.
INTERLINEDo a tailor's job.
INTERLINEDo a seamstress's job
interlineto write or insert between lines already written or printed, as for correction or addition
interlineInsert (words) in this way
interlineInsert words between the lines of (a document or other text)