Alternative leafstalk found in the fruit trees (7)
I believe the answer is:
orchard
'the fruit trees' is the definition.
(I've seen this before)
'alternative leafstalk' is the wordplay.
'alternative' becomes 'or'.
'leafstalk' becomes 'chard'.
'or'+'chard'='ORCHARD'
'found in' is the link.
(Other definitions for orchard that I've seen before include "In which one may pick apples" , "It produces fruit" , "Fruit-tree garden" , "Enormous" , "Field of fruit trees" .)