Calls dibs on (6)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
claims
(Other definitions for claims that I've seen before include "Assertions of ownership" , "Assertions that one has gained or achieved something" , "Requests or demands as one's own" , "'Asserts, avers (6)'" , "Declares that one is the owner of something" .)