One might easily be cowed with terror (4)

I believe the answer is:

wimp

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'one might easily be cowed' is the definition.
I can't tell whether this definition defines the answer.

'with terror' is the wordplay.
'with' becomes 'w' (short for with).
'terror' becomes 'imp'.
'w'+'imp'='WIMP'

Can you help me to learn more?

(Other definitions for wimp that I've seen before include "Spineless type" , "Someone ineffectual" , "Unassertive person" , "Weak-willed person" , "Softy" .)

I've seen this clue in The Independent.

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