Struggle with part of building inspection (7)
I believe the answer is:
viewing
'building inspection' is the definition.
(eg a surveyor viewing a building)
'struggle with part' is the wordplay.
'struggle' becomes 'vie' (to vie is to struggle or contend with).
'with' is a charade indicator (letters next to each other).
'part' becomes 'wing' (wing is a kind of part).
'vie'+'wing'='VIEWING'
'of' acts as a link.
(Other definitions for viewing that I've seen before include "Surveying" , "people in front of TV?" , "What's done in front of the TV" , "Opportunity to see" .)