Rejection (7)
'rejection' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for refusal that I've seen before include "Possibly first option to buy" , "Act of declining to take or accept something" , "Failure to accept" , "regrets?" , "Stop by fence" .)
'rejection' is the definition.
(rejection of a claim)
This is all the clue.
(Other definitions for denial that I've seen before include "Refusal to believe an unacceptable truth" , "Declaration that something is untrue" , "Rejection of a request" , "Repudiation" , "Act of asserting that something alleged is not true" .)