Made a home as requirement across street (6)
I believe the answer is:
nested
'made a home' is the definition.
(I've seen this before)
'requirement across street' is the wordplay.
'requirement' becomes 'need' ('need' can be a synonym of 'requirement').
'across' is an insertion indicator.
'street' becomes 'st'.
'need' placed around 'st' is 'NESTED'.
'as' acts as a link.
(Other definitions for nested that I've seen before include "Inhabited an egg-laying place" , "Settled in comfortably, snuggled up" , "Settled in cosily like bird" , "Settle in comfortably like a bird" , "Built a home" .)