Crude poem had one shocked? (7)

I believe the answer is:

mophead

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'one shocked?' is the definition.
I know nothing about this answer so I cannot judge whether it can be defined by this definition.

'crude poem had' is the wordplay.
'crude' indicates an anagram.
'poem'+'had'='poemhad'
'poemhad' with letters rearranged gives 'MOPHEAD'.

Can you help me to learn more?

(Other definitions for mophead that I've seen before include "One with unkempt hair" , "one shocked" .)

I've seen this clue in The Times.

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