Reserved enclosure for left-field was second-rate (6)

I believe the answer is:

shoddy

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'second-rate' is the definition.
(I've seen this before)

'reserved enclosure for left' is the wordplay.
'reserved' becomes 'shy' (I've seen this before).
'enclosure for' is an insertion indicator (inserted letters are enclosed).
'left' becomes 'odd' (synonyms).
'shy' going around 'odd' is 'SHODDY'.

'field was' acts as a link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.

Can you help me to learn more?

(Other definitions for shoddy that I've seen before include "Badly made or done" , "clippings in this" , "Cheap and inferior" , "Badly made; sordid" , "Second-rate" .)

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

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