Therefore sup nervously and sneak up on tableware (4,6)

'tableware' is the definition.
I don't know anything about this answer so I can't tell whether this works.

'therefore sup nervously and sneak up' is the wordplay.
'therefore' becomes 'so' ('so' can mean 'consequently' or 'therefore').
'nervously' indicates anagramming the letters.
'and' means one lot of letters go next to another.
'sneak up' becomes 'poons' (I can't explain this - if you can you should believe this answer much more).
'sup' anagrammed gives 'ups'.
'so'+'ups'+'poons'='SOUP-SPOONS'

'on' acts as a link.

Can you help me to learn more?