Was it packed with Tommy's troubles? (6)

I believe the answer is:

kitbag

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'it packed with tommy's troubles?' is the definition.
The definition suggests a singular noun which matches the answer.

I don't understand the remainder of the clue.

Can you help me to learn more?

(Other definitions for kitbag that I've seen before include "knapsack" , "Serviceman's canvas pack" , "Cylindrical canvas holder for soldiers' clothes" .)

I've seen this clue in the Evening Standard.

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