Nimble artisan appearing regularly in Spain and Portugal (6)
I believe the answer is:
iberia
'spain and portugal' is the definition.
(I've seen this before)
'nimble artisan appearing regularly' is the wordplay.
'appearing regularly' means one should take alternating letters.
'nimble'+'artisan'='nimbleartisan'
The alternating letters of 'nimbleartisan' are 'IBERIA'.
'in' acts as a link.
(Other definitions for iberia that I've seen before include "Great European peninsula containing Spain and Portugal" , "Where Juan possibly lives" , "Spain and Portugal together" , "W. European peninsula" , "European countries" .)