Lawyer after payment for quarter, exhausted (6)
I believe the answer is:
feeble
'exhausted' is the definition.
(thesaurus)
'lawyer after payment for quarter' is the wordplay.
'lawyer' becomes 'bl' (Bachelor of Law).
'after' says to put letters next to each other.
'payment' becomes 'fee' (payment for a job).
'for' says to put letters next to each other.
'quarter' becomes 'e'.
'bl' put after 'fee' is 'feebl'.
'feebl'+'e'='FEEBLE'
(Other definitions for feeble that I've seen before include "Lacking physical strength" , "Physically weak or lacking effectiveness" , "rather weak" , "Lacking force" , "Weak, frail" .)