Religious traveller (7)
I believe the answer is:
pilgrim
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">religious traveller</span>' is the definition.<br/ ><span class="explanation-format__explanation">(someone travelling on pilgrimage)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for pilgrim that I've seen before include "One progressive type" , "Traveller to a sacred place like Mecca" , "Mecca visitor" , "Person who journeys for religious reasons" , "Wayfarer to holy site" .)