I entirely agree that the definition must be either at the beginning or the end, not in the middle - but I was referring to the place Boulder, in Colorado ... so "in Colorado" is at the end as required. The Little Rock growing up was the cryptic clue, and the Arkansas for completeness, suggesting a place to be looked for. Even if you objected to this inclusion, spurious words are allowed if they do not fundamentally change the meaning, and I don't think it does.

[rab]I presume you now get the "capital" part of No.5 - as in death (literally head removal).

I think we'll have to agree to disagree about "spurious" words which I believe have no place in a crossword clue. This extends even to articles - the distinction between 'a', 'the' and an unmarked word can be huge in a crossword clue. But this is not really relevant to my beef that "Born in Little Rock, Arkansas - grew up" is not a suitable definition (even a cryptic, subsidiary definition) of "boulder". I accept it's cute that there's a place in the US called Little Rock, and a big rock is a Boulder, which is also a place in the US. I reckon one might be able to make a satisfactory clue out of it. Sadly, I don't think this one is it.

I expect now for you to reveal that it was taken from a Times puzzle...

[Blob, re capital] No, I only get the block part. Could you explain?

O.k. I'll admit that maybe the Boulder one was tweaking the nose a little, but I deemed it sufficiently obvious not to cause a problem in solving it - I've seen a lot dodgier ones anyway.

With regards the capital one : The executioner's chopping board was known as the block capital (admittedly perhaps only poetically) as it was the block on which capital punishment was "executed".