Crossword Genius

Intellectual supporting launch (8)

Ross

I believe the answer is:

profound

'intellectual' is the definition.
(thesaurus)

'supporting launch' is the wordplay.
'supporting' becomes 'pro' (I've seen this in other clues).
'launch' becomes 'found' (synonyms).
'pro'+'found'='PROFOUND'

(Other definitions for profound that I've seen before include "Deep; intense" , "showing great knowledge" , "Intellectually deep" , "unqualified" , "deeply intellectual" .)

I've seen this clue in The Telegraph.
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