Crossword Genius

With no backing, presume Morph's Conservative? You know where you can stick that! (11)

Ross

I believe the answer is:

suppository

'you know where you can stick that' is the definition.

'with no backing presume morph's conservative?' is the wordplay.
'with no backing' means to remove the last letter.
'presume' becomes 'suppose' (I've seen this before).
'morph' becomes 'i' (I can't justify this - if you can you should give a lot more credence to this answer).
'conservative?' becomes 'tory' (Tory is an example).
'suppose' with its final letter taken off is 'suppos'.
'suppos'+'i'+'tory'='SUPPOSITORY'

I've seen this clue in The Independent.
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