Lug part of bale, or last of produce, carelessly (7)
I believe the answer is:
earlobe
'lug part' is the definition.
(I know that earlobe is part of ear)
'bale or last of produce carelessly' is the wordplay.
'last of' says to take the final letters.
'carelessly' indicates anagramming the letters.
The final letter of 'produce' is 'e'.
'bale'+'or'+'e'='baleore'
'baleore' with letters rearranged gives 'EARLOBE'.
'of' is the link.
(Other definitions for earlobe that I've seen before include "Listener's part" , "low part of organ" , "place to hang jewelry" , "that could have a ring to it" , "It depends on the listener" .)