Frequent red tape involved crossing Spain (8)
I believe the answer is:
repeated
'frequent' is the definition.
(thesaurus)
'red tape involved crossing spain' is the wordplay.
'involved' indicates an anagram (involved can mean confusing or complex).
'crossing' means one lot of letters goes inside another.
'spain' becomes 'e' (abbreviation for Espana).
'red'+'tape'='redtape'
'redtape' is an anagram of 'repated'.
'repated' going around 'e' is 'REPEATED'.
(Other definitions for repeated that I've seen before include "Saying again" , "Duplicated" , "Said again" , "Recurring again and again" , "Iterated" .)