1: Quiet decor back, embracing open encouragement to move forward (7)
 2: At risk using the phone (2,3,4)
 3: Blame cast about nine adept at blending in (7)
 4: Heads appearing strange in distorting lens (7)
 5: Quietly instigate a witch-hunt (5)
 6: Modernise rear, in the opinion of escort (5,2,2,4)
 7: Right to possess an address (5)
 9: Surprised fat southerner heading west to execute media mogul Turner (13)
 14:  or creates new mobile sound system (3,6)
 16: To me, his convertible is most comfortable (7)
 17: Uncompromising joke about Ms. Hayworth (7)
 18: Comes to as Ken from Perth gets in (7)
 19: Last half of text inserted into proposed constitutional amendment is superfluous (5)
 20: Emily gets into the topic (5)