Left space for something like a window (8)

I believe the answer is:

porthole

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'window' is the definition.
(I know that porthole is a type of window)

'left space' is the wordplay.
'left' becomes 'port' (left side of a ship - opposite of starboard).
'space' becomes 'hole' (hole is a kind of space).
'port'+'hole'='PORTHOLE'

'for something like a' acts as a link.
This may not be correct. Some or all of it may belong to another bit of the clue.

Can you help me to learn more?

(Other definitions for porthole that I've seen before include "Window on board ship" , "Through which sailor can see" , "Circular window in ship" , "Small watertight opening in ship's side" , "from which sea can be seen" .)

I've seen this clue in the Evening Standard.

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