Be sparing with fabric that attracts grandparent essentially (6)
I believe the answer is:
scrimp
'be sparing' is the definition.
(as in scrimping and saving)
'fabric that attracts grandparent essentially' is the wordplay.
'fabric' becomes 'scrim' (scrim is a kind of fabric).
'that attracts' is a charade indicator (letters next to each other).
'essentially' says to take the centre.
The middle letter of 'grandparent' is 'p'.
'scrim'+'p'='SCRIMP'
'with' acts as a link.
(Other definitions for scrimp that I've seen before include "Treat stingily" , "make economies" , "Watch the pennies" , "Be thrifty and parsimonious" , "Do or spend less than is needed" .)