Titanic object only partly visible (7)

I believe the answer is:

iceberg

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'titanic object' is the definition.
'iceberg' can be an answer for 'object' (iceberg is a kind of object). I'm not certain of the 'titanic' bit.

I can't explain the rest of the clue.

Can you help me to learn more?

(Other definitions for iceberg that I've seen before include "smash hit in Titanic?" , "Wrecker of Titanic" , "Large floating mass of frozen water" , "last scene of Titanic" , "One destroyed the Titanic" .)

I've seen this clue in the Evening Standard.

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