Mope about elderly relative confusing tea and fruit (11)
I believe the answer is:
pomegranate
'fruit' is the definition.
(I know that pomegranate is a type of fruit)
'mope about elderly relative confusing tea' is the wordplay.
'about' indicates anagramming the letters.
'elderly relative' becomes 'gran' (short for grandmother).
'confusing' is an anagram indicator.
'mope' is an anagram of 'pome'.
'tea' with letters rearranged gives 'ate'.
'pome'+'gran'+'ate'='POMEGRANATE'
'and' acts as a link.
(Other definitions for pomegranate that I've seen before include "fruit, please!" , "seedy stuff" , "Semitropical fruit with many seeds" , "Many-seeded fruit" , "tree" .)