Green English youth taken in by trick (7)
I believe the answer is:
celadon
'green' is the definition.
(I know that celadon is a type of green)
'english youth taken in by trick' is the wordplay.
'english' becomes 'e' (abbreviation).
'youth' becomes 'lad' (I've seen this in another clue).
'taken in by' indicates putting letters inside.
'trick' becomes 'con' (a con is a fraud or trick).
'e'+'lad'='elad'
'elad' inserted inside 'con' is 'CELADON'.
(Other definitions for celadon that I've seen before include "pottery" , "Green" , "Greyish-green porcelain" .)