Being a character, I had to get into the battle! (6)
I believe the answer is:
friday
'being a character i had to get into the battle' is the definition.
I can't judge whether this defines the answer.
'i had to get into the battle' is the wordplay.
'i had' becomes 'i'd' (contraction).
'to get into' is an insertion indicator.
'the battle' becomes 'fray' (fray is a kind of battle).
'id' going inside 'fray' is 'FRIDAY'.
Can you help me to learn more?
(Other definitions for friday that I've seen before include "Crusoe's Man (Defoe)" , "Weekend start?" , "one of Chesterton's, so-called" , "faithful companion" , "late in the week" .)