The term 'chair feature' refers to the components of a chair that make it comfortable and functional. The crossword solutions for this term are armrest (7 letters), ARM (3 letters), and splat (5 letters). An armrest is a support for the arms of a person sitting in a chair, typically located on either side of the seat. An ARM is a part of a chair that connects the seat to the backrest. A splat is a flat piece of wood or other material that is used to support the back of a chair.