Present unnamed man with unloaded rifle in unknown location (7)
I believe the answer is:
nowhere
'unknown location' is the definition.
'nowhere' can be an answer for 'location' (I have seen 'remote location' mean 'nowhere' so perhaps 'location' could also mean 'nowhere'). I'm not sure about the 'unknown' bit.
'present unnamed man with unloaded rifle' is the wordplay.
'present' becomes 'now' (both can mean the current period).
'unnamed man' becomes 'he' (he refers to a man).
'with' is a charade indicator (letters next to each other).
'unloaded' suggests removing the centre (the content of the word is unloaded).
'rifle' with its centre removed is 're'.
'now'+'he'+'re'='NOWHERE'
'in' acts as a link.
Can you help me to learn more?
(Other definitions for nowhere that I've seen before include "Neither here nor there?" , "Non-existent location" , "Utopia" , "no prospect of success" , "It can't be found!" .)