Nudist urbanely welcoming Harry (7)
I believe the answer is:
disturb
'harry' is the definition.
(thesaurus)
'nudist urbanely welcoming' is the wordplay.
'welcoming' indicates the answer is hidden within the clue.
'DISTURB' is hidden within 'nudist urbanely'.
(Other definitions for disturb that I've seen before include "Interrupt (sleep)" , "Agitate - ruffle - trouble" , "Interfere with" , "Unsettle, discomfit" , "Interrupt; upset" .)