Tessa returned possession (5)
I believe the answer is:
asset
'possession' is the definition.
(asset is a kind of possession)
'tessa returned' is the wordplay.
'returned' says the letters should be written in reverse.
'tessa' written backwards gives 'ASSET'.
(Other definitions for asset that I've seen before include "one liable to be stripped?" , "Valued item" , "Boon" , "Useful thing or person" , "Holding" .)