Imitates eastern concrete surface with garden tools (6)
I believe the answer is:
echoes
'imitates' is the definition.
(I've seen this in another clue)
'eastern concrete surface with garden tools' is the wordplay.
'eastern concrete surface' becomes 'ec' (I can't explain this - if you can you should give a lot more credence to this answer).
'with' is a charade indicator (letters next to each other).
'garden tools' becomes 'hoes' (I've seen this before).
'ec'+'hoes'='ECHOES'
Can you help me to learn more?
(Other definitions for echoes that I've seen before include "parrots" , "Sounds reverberating" , "Sounds heard again" , "rings" , "Repetition of sounds" .)