Treat for Rover is a phrase that refers to a special reward given to a pet, usually a dog. The crossword solutions for this phrase are BONE (4 letters) and ORTS (4 letters). BONE is a common treat for dogs, as it provides them with essential minerals and vitamins. ORTS is an acronym for 'odds and ends, ' which can refer to any small pieces of food that are left over from a meal. Both BONE and ORTS can be used as treats for Rover, providing him with a special reward.