Keep mixing gin and latte before seeing landmark (8,6)
I believe the answer is:
tintagel castle
'landmark' is the definition.
I don't know anything about this answer so I can't judge whether this works.
'keep mixing gin and latte before' is the wordplay.
'keep' becomes 'castle' (I've seen this before).
'mixing' indicates anagramming the letters.
'and' is a charade indicator (letters next to each other).
'before' means one lot of letters go next to another.
'gin' put after 'latte' is 'lattegin'.
'lattegin' is an anagram of 'tintagel'.
'castle' after 'tintagel' is 'TINTAGEL CASTLE'.
'seeing' acts as a link.
Can you help me to learn more?
(Other definitions for tintagel castle that I've seen before include "Cornish coast ruin" , "Tourist site" .)