Fancy Mr Universe going round Wales (5)
I believe the answer is:
cymru
'wales' is the definition.
(Cymru is the Welsh word for Wales)
'fancy mr universe going round' is the wordplay.
'going round' indicates a hidden word.
'CYMRU' is hidden in the letters of 'fancy mr universe'.
(Other definitions for cymru that I've seen before include "Welsh name for Wales" , "European country" , "Part of UK" .)