Perhaps Del Boy tours Spain cycling in anorak? (12)
I believe the answer is:
trainspotter
'anorak?' is the definition.
(I've seen this before)
'perhaps del boy tours spain cycling' is the wordplay.
'perhaps del boy' becomes 'trotter' (as in Del Boy Trotter from Only Fools and Horses).
'tours' is an insertion indicator (to tour can mean to go around).
'cycling' indicates an anagram.
'spain' is an anagram of 'ainsp'.
'trotter' placed around 'ainsp' is 'TRAINSPOTTER'.
'in' is the link.
(Other definitions for trainspotter that I've seen before include "Nerd" , "One interested in engines" , "anorak" , "Gricer" , "Boring person" .)