Alone I mount unsteadily, showing no signs of feeling (11)

I believe the answer is:

unemotional

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'no signs of feeling' is the definition.
I can't judge whether this definition defines the answer.

'alone i mount unsteadily' is the wordplay.
'unsteadily' indicates an anagram.
'alone'+'i'+'mount'='aloneimount'
'aloneimount' with letters rearranged gives 'UNEMOTIONAL'.

'showing' acts as a link.

Can you help me to learn more?

(Other definitions for unemotional that I've seen before include "Cold" , "Without personal feelings" .)

I've seen this clue in The Irish Independent.

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