Violent character of the gunners' mob, maybe? (5)
I believe the answer is:
rambo
'violent character of' is the definition.
I don't know anything about this answer so I cannot judge whether this works.
'gunners' mob maybe?' is the wordplay.
'gunners'' becomes 'RA' (Royal Artillery).
'maybe?' is an anagram indicator (I've seen 'maybe' mean this).
'mob' is an anagram of 'mbo'.
'ra'+'mbo'='RAMBO'
'the' acts as a link.
Can you help me to learn more?
(Other definitions for rambo that I've seen before include "Character relying on brute force" , "28 film hero" , "Senseless violent person" , "Film series hero" , "Stallone tough guy" .)