Answer: FILLIN

AnswerCrossword Clue
FILLINSubstitute
FILLINTemp
FILLINSubstitute (for)
FILLINBe a substitute.
FILLINComplete a form.
FILLINSubstitute for.
FILLINSubstitute for
FILLINProvide details
FILLINGive details
FILLINComplete, as a crossword
FILLINPinch-hit