Herb Alpert ultimately right to visit part of Spain (8)
I believe the answer is:
tarragon
'herb' is the definition.
(tarragon is a kind of herb)
'alpert ultimately right to visit part of spain' is the wordplay.
'ultimately' indicates one should take the final letters.
'right' becomes 'R' (common abbreviation).
'to visit' indicates putting letters inside.
'part of spain' becomes 'aragon' (I've seen this before).
The final letter of 'alpert' is 't'.
'r' inserted into 'aragon' is 'arragon'.
't'+'arragon'='TARRAGON'
(Other definitions for tarragon that I've seen before include "(Aromatic plant producing) herb" , "Culinary herb" , "cooks may use it" , "certain flavour" , "Arrogant sort of herb" .)