Ned’s going round, starting everywhere with requirements (5)
I believe the answer is:
needs
'requirements' is the definition.
(I know this)
'ned's going round starting everywhere' is the wordplay.
'going round' is an insertion indicator (some letters go around others).
'starting' says to take the initial letters.
The initial letter of 'everywhere' is 'e'.
'neds' going around 'e' is 'NEEDS'.
'with' acts as a link.
(Other definitions for needs that I've seen before include "Requires or lacks" , "shopping-list, say" , "'..... must when the devil drives'" , "Wants, requires" , "Things that are wanted" .)