White snake concealing unpleasant smell briefly gets to drift onto the beach (6)

'to drift onto the beach' is the definition.
I can't tell whether this defines the answer.

'white snake concealing unpleasant smell briefly' is the wordplay.
'white' becomes 'w'.
'snake' becomes 'asp' (asp is a kind of snake).
'concealing' indicates putting letters inside.
'unpleasant smell' becomes 'hum' (hum can mean a disgusting smell).
'briefly' means to remove the last letter.
'hum' with its final letter taken off is 'hu'.
'asp' enclosing 'hu' is 'ashup'.
'w'+'ashup'='WASHUP'

'gets' acts as a link.

Can you help me to learn more?