Weatherman’s first to abandon intricate structures in projections (5)
I believe the answer is:
eaves
'projections' is the definition.
(overhanging parts of buildings)
'weatherman's first to abandon intricate structures' is the wordplay.
'weatherman's first' becomes 'w' (1st letter of 'weatherman').
'to abandon' is a deletion indicator.
'intricate structures' becomes 'weaves'.
'weaves' with 'w' removed is 'EAVES'.
'in' is the link.
(Other definitions for eaves that I've seen before include "Projecting edge of a roof" , "Overhang at edge of a roof" , "Overhanging roof edges" , "Overhanging edge of roof" , "Part of a building's roof that overhangs the walls" .)