Grand growth in garden has Shakespeare in tears — I'm touched (7,6)
I believe the answer is:
weeping willow
'grand growth' is the definition.
Although both the answer and definition are singular nouns, I cannot see how they can define each other.
'garden has shakespeare in tears i'm touched' is the wordplay.
I cannot really understand how this works, but
'shakespeare' could be 'will' (William Shakespeare) and 'will' is present in the answer.
'tears' could be 'weeping' (synonyms) and 'weeping' is located in the answer.
The remaining letters 'ow' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
'in' is the link.
Can you help me to learn more?
(Other definitions for weeping willow that I've seen before include "(A sad) tree?" , "Tree Salix babylonica" , "Tree with hanging branches" , "Trailing-branched tree" , "Tree with drooping branches" .)