Can I check 16d with anyone? The clue is The Royal Navy in dance ready right away for this. I thought 'Hornpipe' but I have Soweto for 23a which gives me an o where the i of pipe should be. Which clue have I got wrong?
Thanks AJT for the explanation for tenor (and Terry for confirmation of the logic behind hornpipe) and I agree with you Julia that
23a. West African country is following South African (6), leads to Somali