Clue: Whirl twig around welcoming back rub for pilot (6,6)
Answer: WILBUR WRIGHT
Explanation: Definition: pilot
An envelope ('welcoming') of BUR, a reversal ('back') of 'rub' in WILWRIGHT, an anagram ('around') of 'whirl twig' for the elder of the . They both piloted their contraptions, but Wilbur tried to shield the younger Orville from some of the more dangerous flights.