P309 CEEFAX 309 Fri 20 May 21:16/47   FOOTBALL: MILLWALL ClIEF  ISSUES APOLOGY  Millwall chairman Reg Burr has given a full apology to De br star Paul Williams over his rnmarks after the viol nt play-off clash. Player's union chief Godon Taylor demanded an explanation after Burr allegedly accused Williams of being an "unpleasant player" who "attracts trouble and abuse."  Derby boss Roy McFarland was forced to substitute Williams after h- was physically attacked and racially abused by Millwall fans. Burr has apologised to Williams and Derby for hiS outspoken commtnts. 5-,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,. Friedjl England ScotsCup Ferdinand