Sweat as some executive rips report up (8)
I believe the answer is:
perspire
'sweat' is the definition.
(I know that sweat can be written as perspire)
'some executive rips report up' is the wordplay.
'some' indicates a hidden word (some of the parts of the word are used).
'up' says the letters should be written in reverse (in down clue: letters go upwards).
'eripsrep' is hidden within 'executive rips report'.
'eripsrep' written backwards gives 'PERSPIRE'.
'as' acts as a link.
(Other definitions for perspire that I've seen before include "Sweat (as a lady does?)" , "Sweat politely" , "Show effect of heat" , "for every shoot" , "Swelter" .)