Find I have left policeman (6)
I believe the answer is:
detect
'find' is the definition.
(synonyms)
'i have left policeman' is the wordplay.
I cannot really see how this works, but
'policeman' could be 'tec' (tec is a kind of policeman) and 'tec' is present in the answer.
The remaining letters 'det' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for detect that I've seen before include "Find out like Sherlock" , "Discover or catch like Sherlock" , "Discover, identify" , "Do what Morse did" , "Perceive - discover" .)