### Clue: Refuse to acknowledge Carnera's title – not surprising at first (6)
### Answer: IGNORE 
 ### Explanation: Definition: Refuse to acknowledge
 "signore"(the form of polite address;title for Carnera, an Italian gentleman) **minus**(not) the first letter of(at first) "surprising ". The surface suggests Primo Carnera, the former Italian boxer who held the world heavyweight title, in a career marred by speculation that his early fights were fixed.