Clench’s father, a lawyer from Essex, married into a Suffolk family and bought the manor of Holbrook, five-and-a-half miles south of Ipswich, in 1589.
Clench was appointed to nine committees in the third Jacobean Parliament. On 27 Feb. 1621 he was the first Member named to consider the lighthouses bill.
After the prorogation Clench stayed with his son-in-law Henry Byng*. In January 1622 one of Byng’s servants was alleged to have predicted that there would be a rebellion over Coke’s arrest, and was racked to discover whether he had heard anything of the sort from his master’s guests. Nothing was elicited from him, and there is no evidence that Clench suffered as a result of the incident.
