Flash traveller touring Spain as well (8)
I believe the answer is:
moreover
'as well' is the definition.
(thesaurus)
'flash traveller touring spain' is the wordplay.
'flash' becomes 'mo' (I've seen this in other clues).
'traveller' becomes 'rover' (rover is a kind of traveller**).
'touring' indicates putting letters inside (touring can mean going round).
'spain' becomes 'e' (abbreviation for Espana).
'rover' going around 'e' is 'reover'.
'mo'+'reover'='MOREOVER'
(Other definitions for moreover that I've seen before include "Besides, in addition" , "Furthermore, in addition" , "as well" .)