Wrapping that woman's mother, edges of towel warming (7)
I believe the answer is:
thermal
'warming' is the definition.
(I've seen this before)
'wrapping that woman's mother edges of towel' is the wordplay.
'wrapping' is an insertion indicator.
'that woman's' becomes 'her' (belonging to a woman).
'mother' becomes 'ma' (Ma is another word for mother or mum).
'edges of' means to remove the middle letters.
'towel' with its middle taken out is 'tl'.
'her'+'ma'='herma'
'herma' inserted within 'tl' is 'THERMAL'.
(Other definitions for thermal that I've seen before include "Warming" , "Type of air current" , "Concerned with high temperature" , "Warm like winter woollies" , "Column of rising air used by gliders" .)