Fool, Arab perhaps, claiming he's a fashion-conscious dresser (7-5)

I believe the answer is:

clothes-horse

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'a fashion-conscious dresser' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.

'fool arab perhaps claiming he's' is the wordplay.
'fool' becomes 'clot' (I've seen this in other clues).
'arab perhaps' becomes 'horse' (arab is a kind of horse).
'claiming' indicates putting letters inside.
'clot'+'horse'='clothorse'
'clothorse' placed around 'hes' is 'CLOTHES-HORSE'.

Can you help me to learn more?

I've seen this clue in The Telegraph.

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