Clue: Eliot's weaver owned one probe (7)
Answer: MARINER
Explanation: Eliot's weaver owned one probe (7)
(Silas) **MARNER **"owned" **1**, so MAR(1)NER 
Silas Marner was the title character and a weaver in one of George Eliot's novels, and Mariner was the name of several American deep-space probes.