A source of inspiration intended, say, to provide delight (9)
I believe the answer is:
amusement
'delight' is the definition.
(amusement is a kind of delight)
'a source of inspiration intended say' is the wordplay.
'source of inspiration' becomes 'muse' (I've seen this before).
'intended' becomes 'meant' (meaning is a kind of intending).
'say' indicates a 'sounds like' (homophone) clue.
'meant' is a homophone of 'ment'.
'a'+'muse'+'ment'='AMUSEMENT'
'to provide' is the link.
(Other definitions for amusement that I've seen before include "Pleasure, diversion" , "Interest" , "Something which entertains" , "Diversion, recreation" , "Entertainment" .)