Delicate embroidery originally attached to leather pants (8)
I believe the answer is:
Here is my best explanation:
'delicate' is the definition.
('ethereal' can be similar in meaning to 'delicate')
'embroidery originally attached to leather pants' is the wordplay.
'originally' suggests taking the first letters.
'attached to' means one lot of letters go next to another.
'pants' indicates anagramming the letters (UK informal term for 'nonsense' or 'rubbish').
The initial letter of 'embroidery' is 'e'.
'leather' is an anagram of 'thereal'.
(Other definitions for ethereal that I've seen before include "Light, delicate, insubstantial", "Airy, celestial", "Light and delicate in appearance, heavenly", "Extremely delicate and light; otherworldly", "Delicate - airy", "Very delicate - tale here (anag)", "impalpable", "Celestial; insubstantial", "Airy or supernatural" and "Refined, airy".)