Log support in addition to press (7)

I believe the answer is:

andiron

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'log support' is the definition.
'andiron' can be an answer for 'support' (andiron is a kind of support). I am not sure about the 'log' bit.

I don't understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for andiron that I've seen before include "Stand by the fire" , "One supports burning wood" , "one of two keeping fire going" , "Fireplace log supporter" , "fire supporter?" .)

I've seen this clue in The Times and The Sunday Times.

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