Deliveries too far out (5)

I believe the answer is:

wides

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

'deliveries too' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.

'far out' is the wordplay.
'far' becomes 'wide' (synonyms).
'out' becomes 's' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'wide'+'s'='WIDES'

Can you help me to learn more?

I've seen this clue in the Evening Standard.

Want a hint initially instead of a full solution? Install my app