Hey Susan,
Close, but it's EXEC (as in "executive"). It's the river EXE, plus the C.
Thank you - and I really should have thought of the Exe!
I was going to write the following, but before posting , I went back and had another look and the answers are: MARTINI and SPINNER!, But I thought you might be interested to see the clues anyway so I'll leave it as written!
My brain had obviously been working on them.
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I've done one more clue so now I'm left with the following for which hints would be appreciated please.
17 down: Drink hot Italian stuff on the way up (7)
Letters: M - R - - - I
The only thing I can think of is MARCONI!
24 across: Top political strategist (7)
Letters: S - - - N E R