Show new plays by a police inspector (7)
I believe the answer is:
display
'show' is the definition.
(display can mean to show or expose)
'new plays by a police inspector' is the wordplay.
I cannot really see how this works, but
an anagram of 'plays' is 'splay' which is present in the answer.
'inspector' could be 'di' (detective inspector) and 'di' is present in the answer.
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 display that I've seen before include "Reveal" , "Put on show" , "Show or arrange" , "Place on show" , "Show to the public" .)