Embarrassed graduated erected a garden building (7)
I believe the answer is:
abashed
'embarrassed' is the definition.
(synonyms)
'graduated erected a garden building' is the wordplay.
'graduated' becomes 'ba' (I am not sure about this - if you are sure you should believe this answer much more).
'erected' says the letters should be written backwards (in a down clue, letters go up).
'garden building' becomes 'shed' (I've seen this in another clue).
'ba' in reverse letter order is 'ab'.
'ab'+'a'+'shed'='ABASHED'
Can you help me to learn more?
(Other definitions for abashed that I've seen before include "Disconcerted or ashamed" , "Embarrassed or discomfited" , "Had base (anag.)" , "Disturbed" , "Feeling uneasy" .)