Cryptic Crossword Clues

[Boatbuilder]

A rather confused Reg quotes something outrageous. (9)

[Barnard]

Reg quotes can become GROTESQUE which is synonymous with ‘something outrageous’.

[Boatbuilder]

Yes, that's right Barnard. I thought that was quite easy as it came to me quite quickly.

[Barnard]

Thanks, John.
I’ll have a think about another clue.

[Barnard]

Defective Scotsman is partially undressed…with hesitation? (3,2,6)

[Bertie]

I've been struggling to think up anything for this one. Finally got a guess that at least works for the first part, though I'm not sure about the last bit - is it 'Out of kilter'?

[Barnard]

Out Of Kilter is right. The ‘hesitation’ is just ‘er’ which is often used in crosswords for hesitation, as is ‘um’.
I was quite pleased with ‘Scotsman partially undressed’ = ‘out of kilt’.
Well worked out, Bertie.

[Bertie]

Thanks, Barnard. Very clever clue.

I should have thought of hesitation signifying um / er. I'll try to remember that for future clues.

[Barnard]

Boxer dog I register. (8)

[Bertie]

Is that pugilist?
Another word for Boxer, made up of pug (dog) + I + list (register)?

[Barnard]

Right again, Bertie.

[Barnard]

Foolish talk and endless wonderment. Laugh! (6)

[Bertie]

Is that guffaw?
Guff is the foolish talk, endless wonderment would be awe without the end e? And a guffaw is a laugh.

[Barnard]

That’s right, Bertie.

[Barnard]

Hairstyles, which are a feature of tundra at the beginning owing to the extreme cold. (10)