Spades have lodged in the ground (4)
I believe the answer is:
sown
'lodged in the ground' is the definition.
(as in sown seeds)
'spades have' is the wordplay.
'spades' becomes 's' (abbreviation in card games).
'have' becomes 'own' (synonyms).
's'+'own'='SOWN'
(Other definitions for sown that I've seen before include "(Of seeds) planted" , "Broadcast" , "set out to grow" , "(Of seed) planted" , "Placed in ground as seed" .)