Over there across the road, there’s harmony (5)
I believe the answer is:
order
'harmony' is the definition.
(thesaurus)
'over there across the road' is the wordplay.
'over there' becomes 'oer' (I can't justify this - if you can you should give a lot more credence to this answer).
'across' means one lot of letters goes inside another.
'the road' becomes 'rd' (abbreviation).
'oer' going around 'rd' is 'ORDER'.
'there's' is the link.
Can you help me to learn more?
(Other definitions for order that I've seen before include "Instruct" , "See 20" , "Select from menu" , "Direct - sequence" , "Tidy state - that's a command" .)