Dip asparagus top in watered-down tzatziki finally (6)
I believe the answer is:
tahini
'dip' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.
'asparagus top in watered-down tzatziki finally' is the wordplay.
'top' says to take the initial letters (in a down clue, the first letter is top).
'in' is an insertion indicator.
'watered-down' becomes 'thin' (I've seen this in another clue).
'finally' indicates one should take the final letters.
The initial letter of 'asparagus' is 'a'.
The final letter of 'tzatziki' is 'i'.
'a' placed inside 'thin' is 'tahin'.
'tahin'+'i'='TAHINI'
Can you help me to learn more?
(Other definitions for tahini that I've seen before include "Sesame paste; in a hit (anag.)" , "Sesame seed paste" , "Sesame-seed based foodstuff" , "Paste of sesame seeds" .)