### Clue: Writer of book on Queen has ably represented popular link (5,10)
### Answer: BERYL BAINBRIDGE 
 ### Explanation: Definition: Writer
  B(abbrev. for $$b$$ook) **plus**(on) ER(the Queen,$$E$$lizabeth $$R$$egina) **plus**(has) ***anagram of*** or **reversal of**(re–presented, note the hyphen) ABLY + IN(popular,fashionable) BRIDGE(link from one side to another). 
Answer: English authoress, Whitbread Award winner, and Booker Prize nominee.