Nervousness? Take some distilled gin essence (8)
I believe the answer is:
edginess
'nervousness?' is the definition.
(thesaurus)
'some distilled gin essence' is the wordplay.
'some' indicates the answer is hidden within the clue (some of the parts of the word are used).
'EDGINESS' is hidden within 'distilled gin essence'.
'take' acts as a link.
(Other definitions for edginess that I've seen before include "State of nervous tension" , "Feeling of anxiety, disquietude" , "Tenseness, nervousness" .)