Day at home providing material (5)
I believe the answer is:
satin
'material' is the definition.
(I know that satin is a type of material)
'day at home' is the wordplay.
'day' becomes 'sat' (short for Saturday).
'at home' becomes 'in' ('I'm in' can mean 'I'm at home').
'sat'+'in'='SATIN'
'providing' acts as a link.
(Other definitions for satin that I've seen before include "covered with?" , "Glossy textile" , "Stain on shiny fabric" , "Saint (anag.)" , "Silky material" .)