Ambassador hates running round to put weapon away (7)
I believe the answer is:
sheathe
'put weapon away' is the definition.
I can't judge whether this definition defines the answer.
'ambassador hates running round' is the wordplay.
'ambassador' becomes 'he' (His or Her Excellency).
'running' indicates an anagram.
'round' means one lot of letters goes inside another.
'hates' anagrammed gives 'sathe'.
'he' placed within 'sathe' is 'SHEATHE'.
'to' is the link.
Can you help me to learn more?
(Other definitions for sheathe that I've seen before include "Put (a sword) it its cover" , "Encase in protection" , "stow away safely" , "Put into scabbard" , "Protective cover, for sword say" .)