Clue: Labour minister, who once attacked political correctness, claims most of others exaggerated (8)
Answer: PRESCOTT
Explanation: Definition: Labour ministe
A charade of PRESC, an envelope ('claims') of RES[t] ('others') minus its last letter ('most of') in PC ('political correctness'); plus OTT (over the top, 'exaggerated'). For the definition, see .