Work experience trainee (6)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
intern
'work experience trainee' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for intern that I've seen before include "Deprive of freedom" , "Hold in custody" , "Young American 18" , "Houseman" , "Confine as a prisoner" .)