Nervous of fine and reprimand (7)
I believe the answer is:
fearful
'nervous' is the definition.
(thesaurus)
'fine and reprimand' is the wordplay.
'fine' becomes 'f' (abbreviation e.g. condition of old coins, books).
'and' says to put letters next to each other.
'reprimand' becomes 'earful' (earful is a kind of reprimand).
'f'+'earful'='FEARFUL'
'of' acts as a link.
(Other definitions for fearful that I've seen before include "Afraid; very great" , "Frightened, apprehensive" , "wary" , "Timid" , "Apprehensive, worried" .)