Spielberg film used in motion studies (6)
I believe the answer is:
etudes
'studies' is the definition.
(I've seen this in another clue)
'spielberg film used in motion' is the wordplay.
I cannot quite understand how this works, but
'film' could be 'et' (E.T. the Extra-Terrestrial) and 'et' is located in the answer.
an anagram of 'used' is 'udes' which is present in the answer.
No letters remain.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for etudes that I've seen before include "Short pieces for solo instruments to show talent" , "Set due in short musical compositions" , "Short compositions for solo instruments" , "Musical studies" , "Sue Ted over short musical compositions" .)