Last bit or last bits of the lemon curd (3)
I believe the answer is:
end
'last bit' is the definition.
(I've seen this in another clue)
'last bits of the lemon curd' is the wordplay.
'last bits of' indicates one should take the final letters.
The last letters of 'the lemon curd' are 'END'.
'or' is the link.
(Other definitions for end that I've seen before include "Objective or conclusion" , "Goal; leftover" , "scrap" , "border?" , "Extreme" .)