Crossword Genius

Derelict old boy I see turning up (4)

Ross

I believe the answer is:

hobo

'derelict' is the definition.
(I've seen this in another clue)

'old boy i see turning up' is the wordplay.
'old boy' becomes 'ob' (abbreviation for a private school 'old boy').
'i see' becomes 'oh' (both can mean 'I understand').
'turning up' is a reversal indicator.
'ob'+'oh'='oboh'
'oboh' back-to-front is 'HOBO'.

(Other definitions for hobo that I've seen before include "Vagrant (American)" , "Vagrant, tramp" , "Tramp (US)" , "Bum" , "American tramp" .)

I've seen this clue in The Independent.
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