Anxious about anger if excited (7)

I believe the answer is:

fearing

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'anxious about' is the definition.
I can't tell whether this defines the answer.

'anger if excited' is the wordplay.
'excited' is an anagram indicator.
'anger'+'if'='angerif'
'angerif' is an anagram of 'FEARING'.

Can you help me to learn more?

(Other definitions for fearing that I've seen before include "Nervous" , "Dreading" , "Worried about" .)

I've seen this clue in The Times.

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