Part of street housing e.g. soldiers (7)
I believe the answer is:
segment
'part' is the definition.
(segment is a kind of part)
'street housing e g soldiers' is the wordplay.
'street' becomes 'st'.
'housing' indicates putting letters inside.
'soldiers' becomes 'men' (I've seen this before).
'e'+'g'+'men'='egmen'
'st' placed around 'egmen' is 'SEGMENT'.
'of' acts as a link.
(Other definitions for segment that I've seen before include "Part of, eg, an orange" , "split up" , "Part, piece" , "Piece of an orange" , "Part of a circle cut off by a chord" .)