Ungainly member, one with rich clothing (7)

I believe the answer is:

lumpish

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'ungainly' is the definition.
(thesaurus)

'member one with rich clothing' is the wordplay.
'member' becomes 'mp'.
'one' becomes 'i' (Roman numeral).
'with rich' becomes 'lush' ('lush' can be similar in meaning to 'rich'. I am not sure about the 'with' bit.**).
'clothing' means one lot of letters goes inside another.
'mp'+'i'='mpi'
'mpi' inserted within 'lush' is 'LUMPISH'.

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(Other definitions for lumpish that I've seen before include "misshapen" , "Ungainly" .)

I've seen this clue in The Times.

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