Ensnare the girl with the round bottom (5)
I believe the answer is:
lasso
'ensnare' is the definition.
(thesaurus)
'girl with the round bottom' is the wordplay.
I cannot quite see how this works, but
'girl' could be 'lass' (lass can informally mean a girl) and 'lass' is present in the answer.
'round' could be 'o' (round can mean a round object) and 'o' is found within the answer.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
'the' is the link.
Can you help me to learn more?
(Other definitions for lasso that I've seen before include "Rancher's rope" , "One may be caught by this" , "snare" , "Somehow catch" , "Cowboy's noosed rope" .)