Crossword Genius

Hold gander upside down (4)

Ross

I believe the answer is:

keep

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'hold' is the definition.
(synonyms)

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(Other definitions for keep that I've seen before include "Central tower of castle" , "Continue" , "Hold - part of castle" , "Subsistence" , "Retain or care for" .)

I've seen this clue in The Telegraph.
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