Do show an inclination to be quarrelsome (7)

I believe the answer is:

contend

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

'be quarrelsome' is the definition.
I can't tell whether this definition defines the answer.

'do show an inclination' is the wordplay.
'do' becomes 'con' (both can mean to defraud).
'show an inclination' becomes 'tend' (I've seen this in another clue).
'con'+'tend'='CONTEND'

'to' acts as a link.

Can you help me to learn more?

(Other definitions for contend that I've seen before include "fight" , "Struggle; assert" , "Tend NCO (anag.)" , "Struggle in rivalry" , "Compete; deal (with)" .)

I've seen this clue in the Evening Standard.

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