Fence-sitting is a term used to describe someone who is undecided or neutral in a situation. It is derived from the phrase 'STRADDLE the fence, ' which means to be on both sides of an issue. The crossword solutions for the term FENCE-SIT are STRADDLE (8 letters) and WAVER (5 letters). STRADDLE means to sit or stand with one leg on each side of something, while WAVER means to be uncertain or indecisive. Therefore, these two words accurately describe the concept of fence-sitting.