Brave, getting large term of endearment (7)
I believe the answer is:
darling
'term of endearment' is the definition.
(I've seen this before)
'brave getting large' is the wordplay.
'brave' becomes 'daring' (daring can mean adventurous or courageous).
'getting' indicates putting letters inside.
'large' becomes 'L' (eg in clothes sizes).
'daring' placed around 'l' is 'DARLING'.
(Other definitions for darling that I've seen before include "Grace -, nineteenth century wreck heroine of lighthouse" , "Term of affection" , "Term of endearment" , "Pet" , "Australian river and loved one" .)