Battler with steel built supportive platform (7,5)

I believe the answer is:

trestle table

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'supportive platform' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps they are linked in a way I don't understand?

'battler with steel built' is the wordplay.
'with' says to put letters next to each other.
'built' indicates anagramming the letters (the same letters can be used to build the answer).
'battler' put after 'steel' is 'steelbattler'.
'steelbattler' with letters rearranged gives 'TRESTLE-TABLE'.

Can you help me to learn more?

(Other definitions for trestle table that I've seen before include "Board with removable support" , "Framework carrying scaffold boards etc" .)

I've seen this clue in The Times.

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