One put out, claiming rights to break in (6)
I believe the answer is:
irrupt
'break in' is the definition.
(I've seen this before)
'one put out claiming rights' is the wordplay.
'one' becomes 'i' (Roman numeral).
'out' indicates anagramming the letters (out can mean wrong or inaccurate).
'claiming' indicates putting letters inside.
'rights' becomes 'rr'.
'put' anagrammed gives 'upt'.
'upt' placed around 'rr' is 'rrupt'.
'i'+'rrupt'='IRRUPT'
'to' is the link.
(Other definitions for irrupt that I've seen before include "Enter forcibly and suddenly" , "Break, rush, in" , "Enter forcibly or violently" .)