Urge competition - something seen with soldiers? (6)

I believe the answer is:

eggcup

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'something seen with soldiers?' is the definition.
I can't judge whether this definition defines the answer.

'urge competition' is the wordplay.
'urge' becomes 'egg' (as in egging someone on).
'competition' becomes 'cup' (eg the FA Cup).
'egg'+'cup'='EGGCUP'

Can you help me to learn more?

(Other definitions for eggcup that I've seen before include "Holder of an oval thing" , "Bearer of breakfast (with soldiers)" , "Breakfast placed here" , "what held a problem for curate?" .)

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