Spooner's tear in breeches, old fruit (7)
I believe the answer is:
rosehip
'fruit' is the definition.
(fruit of a rose plant)
'spooner's tear in' is the wordplay.
'spooner's tear' becomes 'rose' (I can't justify this - if you can you should believe this answer much more).
'in' becomes 'hip' (both can mean fashionable).
'rose'+'hip'='ROSEHIP'
'breeches old' acts as a link.
This may not be correct. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for rosehip that I've seen before include "Berry for syrup" , "Fruit of a popular flower" , "Fruit of the briar" , "Fruit on wild plant" , "Wayside fruit" .)