Lad left laundrette in a pickle with a pecan plant (3,4)
I believe the answer is:
nut tree
'a pecan plant' is the definition.
The definition and answer can be both plants as well as being singular nouns.
Perhaps you can see an association between them that I don't see?
'lad left laundrette in a pickle' is the wordplay.
'left' is a deletion indicator.
'in a pickle' is an anagram indicator (UK expression meaning 'in trouble or difficulty').
'laundrette' with 'lad' taken away is 'unrette'.
'unrette' anagrammed gives 'NUT-TREE'.
'with' acts as a link.
Can you help me to learn more?
(Other definitions for nut tree that I've seen before include "source of fruit" , "Hazel is one" , "Eg, almond/hazel/etc" , "Eg, almond or hazel" , "This plant" .)