I did have a gardening implement, by the sound of it, in a state (5)
I believe the answer is:
idaho
'in a state' is the definition.
(I've seen this before)
'i did have a gardening implement by the sound of it' is the wordplay.
'did have' becomes 'da' (I can't explain this - if you can you should give a lot more credence to this answer).
'a gardening implement' becomes 'hoe' (tool used when gardening).
'by the sound of it' shows a homophone (sound like).
'hoe' sounds like 'ho'.
'i'+'da'+'ho'='IDAHO'
Can you help me to learn more?
(Other definitions for idaho that I've seen before include "NW state of USA" , "Rocky Mountain state" , "part of US near Washington" , "North-western US state" , "found in America" .)