Solutions A vote by raising hands has 20 entries with similar clues

• 4-letter words
• ptasSch. fund-raising orgs.
• weirStructure for raising water level in river
• capoA pitch-raising device for fretted instrument
• 5-letter words
• yeastRaising agent
• fetesGala occasions for raising funds for a worthy cause
• arsonFire raising
• 6-letter words
• cranesthey are used for raising birds
• creepyHair-raising
• 7-letter words
• rearingRaising, like a child
• halyardRope used for raising and lowering sail
• 8-letter words
• undulateMove with a raising and falling motion
• 9-letter words
• pyromaniaObsession with fire-raising
• sash-cordMeans of raising and lowering window
• thrillingHair-raising
• 10-letter words
• securitiseConvert an asset into marketable securities for raising cash
• 11-letter words
• hit-a-nerveGet a reaction by raising a sensitive issue
• jumble-saleFund-raising event less common in affluent society
• 12-letter words
• wolf-whistleA whistle with a raising and falling pitch used to express sexual attraction
• suction-pumpCylinder with piston and flap valve for raising water
• 15-letter words
• press-the-fleshShake many hands to gather votes