Hesitation before Jew needing no introduction becomes a recluse (7)
I believe the answer is:
eremite
'a recluse' is the definition.
(thesaurus)
'hesitation before jew needing no introduction' is the wordplay.
'hesitation' becomes 'er'.
'before' is a charade indicator (letters next to each other).
'jew' becomes 'semite' (I've seen this before).
'needing no introduction' means to remove the first letter.
'semite' with its first letter removed is 'emite'.
'er'+'emite'='EREMITE'
'becomes' acts as a link.
(Other definitions for eremite that I've seen before include "Solitary" , "Christian hermit or recluse" , "Religious person" , "desert father" , "ascetic" .)