Easily scared, Kitchener ached after surgery (7-7)

I believe the answer is:

chicken-hearted

'easily scared' is the definition.
(chicken-hearted can mean cowardly)

'kitchener ached after surgery' is the wordplay.
'after surgery' indicates anagramming the letters.
'kitchener'+'ached'='kitchenerached'
'kitchenerached' with letters rearranged gives 'CHICKEN-HEARTED'.

(Another definition for chicken-hearted that I've seen is " yellow".)

I've seen this clue in The Times.

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