Guardian Prize

[emk50]

Really struggling with right hand side
6d Sarply moving major piece about a national swimmer - I like this work’s power (8,7)
17/18d Buttonholing guy on lake, one does delay rising star (7,7)
TIA

[Grimaldi]

Thanks, mamyalynne, for parsing Charlie Chaplin.
Can you do the same (assuming my solutions are correct!) for
14 ac, PRECARIOUS - ...not very accommodating airliner for vacation, and
10 ac, ADVANCE - Bed wicked nurses? One goes further.

[Toorak]

Precious around a(irline)r

Ace around d(I)van

[Lie-in King]

In case Mamya's not around -

14a Precarious - 'a(irline)r' (for vacation, in) 'precious' (safe [from the previous answer; the ...])
10a Advance - 'ace' (wicked, nurses; contains) 'd(i)van' ('i'; one, goes)

[Grimaldi]

Thanks, both.
A bit of a slog this week, where usually I find the Prize easier thank the everyday Cryptic, but then I've been struggling with those this week!