Fat, order some seconds (5)

I believe the answer is:

obese

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'fat' is the definition.
(similar in meaning)

'order some seconds' is the wordplay.
'order' becomes 'obe'.
'some seconds' becomes 'se' (I am not sure about this - if you are sure you should believe this answer much more).
'obe'+'se'='OBESE'

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(Other definitions for obese that I've seen before include "Roly-poly" , "in need of slimming down" , "Very big" , "Significantly overweight" , "Needing to lose weight" .)

I've seen this clue in the Evening Standard.

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