Crossword Genius

Organising hen parties is endless learning opportunity (11)

Ross

I believe the answer is:

traineeship

'learning opportunity' is the definition.

'organising hen parties is endless' is the wordplay.
'organising' indicates anagramming the letters.
'endless' means to remove the last letter.
'hen'+'parties'+'is'='henpartiesis'
'henpartiesis' with its last letter removed is 'henpartiesi'.
'henpartiesi' anagrammed gives 'TRAINEESHIP'.

(Another definition for traineeship that I've seen is " learning on the job".)

I've seen this clue in The Guardian.
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