Overdramatic, bringing the old guns back! (6)
I believe the answer is:
stagey
'overdramatic' is the definition.
I can't judge whether this definition defines the answer.
'the old guns back' is the wordplay.
'the old' becomes 'ye' (resembles a historical spelling of 'the').
'guns' becomes 'gats' (gat is a kind of gun).
'back' is a reversal indicator.
'ye'+'gats'='yegats'
'yegats' in reverse letter order is 'STAGEY'.
'bringing' is the link.
Can you help me to learn more?
(Other definitions for stagey that I've seen before include "Excessively dramatic" , "may be exaggerated" , "Much too theatrical" , "camp" .)