Cryptic

[1010k]

Clue: hot dripping! 12 letters only one of which is certain: ??????R?????

[Svejk]

thunderstorm?

[Tilly2]

How did you get that, Svejk?

[Sam1960]

perspiration

[Davemano]

Perspirating

[Davemano]

Sam - yours is better

[Svejk]

Looks like I got it wrong, till. ;-(

[Sam1960]

Evening dave hope you're well ;o)

[Tilly2]

Never mind, Svejk. Onwards and upwards! :-)

[Davemano]

Yes thanks, I read the obituaries this morning and my name wasn't there so I got up-x

[Svejk]

God loves a trier. ;-)

[1010k]

Thank you all for the help. It's either perspiration or perspirating, probably the latter, to reflect the -ing of dripping. But I need more work to confirm the ending. First part fits.

[1010k]

Confirming that the best answer to this clue is: perspiration. All done now, with many thanks. 'Night!

[Sam1960]

you're welcome
good luck