### Clue: Check company books with Rob endlessly (7)
### Answer: CONTROL 
 ### Explanation: Definition: Check
 CO(abbrev. for "company"/a commercial concern) + NT(abbrev. for the New Testament, collection of books in the Bible) **plus**(with) "roll"(to rob someone, typically when they're drunk or asleep) **minus ****its last letter**(endlessly).