Crossword Genius

Name a streetcar if you wish (6)

Ross

I believe the answer is:

desire

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'you wish' is the definition.
'desire' can be an answer for 'wish' (thesaurus). I am not certain of the 'you' bit.

'name a streetcar' is the wordplay.
'name' becomes 'des'.
'a streetcar' becomes 'ire' (I can't justify this - if you can you should give a lot more credence to this answer).
'des'+'ire'='DESIRE'

'if' acts as a link.

Can you help me to learn more?

(Other definitions for desire that I've seen before include "Concupiscence" , "Reside (anag.)" , "request" , "Want, wish for" , "Covet" .)

I've seen this clue in the Evening Standard.
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