Run out and look around for a tin opener (5)
I believe the answer is:
peter
'a tin opener' is the definition.
Although both the answer and definition are singular nouns, I cannot see how one could define the other.
'run out and look around' is the wordplay.
'run' becomes 'term' (both can mean a stretch of time).
'out' means to remove the last letter.
'and' is a charade indicator (letters next to each other).
'look around' becomes 'pe' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'term' with its last letter removed is 'ter'.
'ter' after 'pe' is 'PETER'.
'for' acts as a link.
Can you help me to learn more?
(Other definitions for peter that I've seen before include "Leader of the Apostles" , "Fellow < safe" , "Sir - - Ustinov" , "One of the Apostles" , "Disciple" .)