Just a little exorbitant? (3)
I believe the answer is:
bit
'just' is the definition.
Both the answer and definition are adjectives. Perhaps you can see an association between them that I don't see?
'a little exorbitant?' is the wordplay.
'a little' indicates a hidden word (a little bit of the clue).
'BIT' can be found hidden inside 'exorbitant'.
Can you help me to learn more?
(Other definitions for bit that I've seen before include "chip?" , "Cutting piece of a drill (3)" , "scrap" , "Segment" , "Small fragment" .)