Crossword Genius

Express a view there is nothing to long for (5)

Ross

I believe the answer is:

opine

I'm a little stuck... Click here to teach me more about this clue!

'express a view' is the definition.
(I've seen this before)

'nothing to long for' is the wordplay.
I cannot quite understand how this works, but
'nothing' could be 'o' (looks like zero - 0) and 'o' is found in the answer.
'long' could be 'pine' (to pine for someone is to long for them) and 'pine' is present in the answer.
No letters remain.
This may be the basis of the clue (or it may be nonsense).

'there is' acts as a link.

Can you help me to learn more?

(Other definitions for opine that I've seen before include "State one's held view" , "State as one's opinion" , "Believe" , "Proffer a view" , "Express one's opinion openly" .)

I've seen this clue in the Sydney Morning Herald.
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