Crossword Genius

Liable to pinch uncle’s oar somehow? (9)

Ross

I believe the answer is:

larcenous

I'm a little stuck... Click here to teach me more about this clue!

'liable to pinch' is the definition.
I can't tell whether this definition defines the answer.

'uncle's oar somehow?' is the wordplay.
'somehow?' indicates an anagram (I've seen 'somehow' mean this).
'uncles'+'oar'='unclesoar'
'unclesoar' with letters rearranged gives 'LARCENOUS'.

Can you help me to learn more?

(Other definitions for larcenous that I've seen before include "Like other crimes" , "thieving" , "Inclined to appropriate" , "Criminal" , "concerning certain crimes" .)

I've seen this clue in The Times.
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