Bequest for example in clay mixture (6)
I believe the answer is:
legacy
'bequest' is the definition.
(I know that bequest can be written as legacy)
'example in clay mixture' is the wordplay.
'example' becomes 'eg' (short for 'exempli gratia', 'for example' in Latin).
'in' means one lot of letters goes inside another.
'mixture' is an anagram indicator.
'clay' anagrammed gives 'lacy'.
'eg' inserted inside 'lacy' is 'LEGACY'.
'for' is the link.
(Other definitions for legacy that I've seen before include "Sort of gift" , "estate?" , "Willed gift" , "Post-death gift" , "Something handed down" .)