（*Kle/arxos), a Spartan, son of Ramphias.
In the congress which the Spartans held at Corinth, in B. C. 412, it was determined to employ him as commander in the Hellespont after Chios and Lesbos should be gained from the Athenians ; and in the same year the eleven commissioners, who were sent out from Sparta to take cognizance of the conduct of Astyochus, were entrusted with the discretionary power of despatching a force to the Hellespont under Clearchus. (Thuc. 8.8, 39.) In B. C. 410, he was present at the battle of Cyzicus under Mindarus, who appointed him to lead that part of the force which was specially opposed to Thrasybulus. (Diod. 13.51; Xen. Hell. 1.1.16, &c.; Plut. Alc. 28.)
In the same year, on the proposal of Agis, he was sent to Chalcedon and Byzantium, with the latter of which states he had a connexion of hospitality, to endeavour to cut off the Athenian supplies of corn in that quarter, and he accordingly fixed his residence at Byzantium as harmost. When the t