Put on location after Bill goes missing (5)
I believe the answer is:
dress
'put on' is the definition.
(dressing is a kind of putting on)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for dress that I've seen before include "Adorn" , "Apparel" , "Do some cover work in theatre" , "This circle is the first gallery in a theatre" , "formal attire" .)