Correct Pronunciation Request -Clachnaharry?

[Phil]

klak-nuh-har'ree. You are probably pronouncing it correctly. The pub has a superb selection of real ales!

Sadly you are not pronouncing it correctly. You are, in fact, making the same mistake as most non-native speakers do with regard to the "ch" sound found in words such as 'loch' and 'broch'. Imagine the composer J.S. Bach or the film star Barbara Bach (always assuming you are able to pronounce their names correctly, that is). Alternatively, when pronouncing the word 'back' be aware of where your tongue touches the roof of your mouth when saying the 'ck'. Then deliberately stop your tongue from touching the roof of your mouth but keep the breath coming and you should achieve the correct 'ch' sound. It is known as the voiceless velar fricative replacing the ck sound in back. That wasn't difficult now, was it?
Now pronounce it - "clach na harry".
I am most surprised at your pronunciation advice, ThistleDown, given your stated Location as Inverness-shire.