Worked on a roof in a hat given by daughter (5)
I believe the answer is:
tiled
'worked on a roof' is the definition.
(I've seen this in another clue)
'hat given by daughter' is the wordplay.
'hat' becomes 'tile' (old-fashioned term for a hat).
'given by' means one lot of letters go next to another.
'daughter' becomes 'd' (genealogical abbreviation).
'tile'+'d'='TILED'
'in a' is the link.
(Other definitions for tiled that I've seen before include "Like many shower walls" , "covered bathroom wall?" , "Covered in pottery slabs" , "Like many roofs" , "Lined with small glazed rectangles, say bathroom" .)