Discharge from lemon -- impatient to get cleaned up (14)
I believe the answer is:
implementation
'discharge' is the definition.
(thesaurus)
'lemon impatient to get cleaned up' is the wordplay.
'to get cleaned up' indicates an anagram (letters must be tidied or sorted into a new order).
'lemon'+'impatient'='lemonimpatient'
'lemonimpatient' anagrammed gives 'IMPLEMENTATION'.
'from' is the link.
(Other definitions for implementation that I've seen before include "Carrying-out, fulfilment" , "Process of putting into effect" , "Putting in force" .)