Digs ads showcasing Spielberg movie (7)
I believe the answer is:
billets
'digs' is the definition.
Although both the answer and definition are verbs in their -s form, I cannot understand how one could define the other.
'ads showcasing spielberg movie' is the wordplay.
I cannot really understand how this works, but
'movie' could be 'et' and 'et' is located in the answer.
'ads' could be 'bills' (bill is a kind of ad) and 'bills' is located in the remaining letters.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for billets that I've seen before include "Soldiers' lodgings" , "Lodgings for the military" .)