… ecstatic, ingesting tab, getting very high (8)
I believe the answer is:
elevated
'high' is the definition.
(thesaurus)
'ecstatic ingesting tab getting very' is the wordplay.
'ecstatic' becomes 'elated' (I've seen this before).
'ingesting' means one lot of letters goes inside another.
'tab' becomes 'e' (ecstasy or E is a type of tab or tablet).
'getting' says to put letters next to each other.
'very' becomes 'v' (abbreviation).
'e'+'v'='ev'
'elated' enclosing 'ev' is 'ELEVATED'.
(Other definitions for elevated that I've seen before include "Heightened" , "Raised up as to peerage" , "Lifted, raised" , "Sent to another place" , "by such an American railway?" .)