A lot of aged Spanish gold provided aperitif (7)
I believe the answer is:
oloroso
'aperitif' is the definition.
Both the definition and answer are singular nouns.
Perhaps you can see a link between them that I can't see?
'a lot of aged spanish gold provided' is the wordplay.
'a lot of' means to remove the last letter (a lot of but not all of the word).
'aged' becomes 'old' (similar in meaning).
'spanish gold' becomes 'oro' (I've seen this in another clue).
'provided' becomes 'so' (I've seen this in other clues).
'old' with its last letter removed is 'ol'.
'ol'+'oro'+'so'='OLOROSO'
Can you help me to learn more?
(Other definitions for oloroso that I've seen before include "Golden sherry" , "Medium sherry" , "wine" , "Dark, sweet sherry" , "Heavy dark sherry" .)