Answer: YEABIG

AnswerCrossword Clue
YEABIGAs large as this
YEABIGWords spoken while holding one's hands apart
YEABIGSize demonstrated with the hands
YEABIG"'Bout this large"
YEABIG"About this size ..."
YEABIGSize approximation
YEABIGSize mentioned in a fish story
YEABIGSize of the one that got away, perhaps