Ah - many thanks, kind sir. Didn't realise that PRENTICE was aphetic for APPRENTICE and if I hadn't been so lazy a quick peek in the dictionary would have told me that.
[rab] Re-archer: I assume the idea is that it is a double definition. With a dash (hyphen), it can be read as bulls-hitting, which is what archers do. Without, it is what Jeff does. And I've seen "clueless" done that way before, more or less.
[CdM] Thanks - I've got so used to reading 'without' as the opposite of 'within' I forget it can also mean the opposite of 'with'. Also I should have realised this: Cyclops has clued this word in this kind of way before.
I think that clue would be improved by being simply Archer's thing. Like the bust down reason example, it makes the entire clue simultaneously the definition and the cryptic indication.