Thankful (8)
'thankful' is the definition.
(I know that thankful can be written as grateful)
This is all the clue.
(Other definitions for grateful that I've seen before include "Beholden" , "Thankful, appreciative" , "Felt a rug (anag)" , "Showing appreciation for kindness" , "Showing gratitude" .)
(Other definitions for pleased that I've seen before include "Content" , "Euphoric" , "Glad" , "like Punch?" , "Grateful, delighted" .)