Tamil leader left in a large town without a word or sound (7)

I believe the answer is:

tacitly

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'without a word or sound' is the definition.
I can't tell whether this definition defines the answer.

'tamil leader left in a large town' is the wordplay.
'leader' suggests taking the first letters.
'left' becomes 'l' (common abbreviation).
'in' indicates putting letters inside.
'large town' becomes 'city' (I've seen this before).
The first letter of 'tamil' is 't'.
'a'+'city'='acity'
'l' inserted within 'acity' is 'acitly'.
't'+'acitly'='TACITLY'

Can you help me to learn more?

(Other definitions for tacitly that I've seen before include "By implication" , "understandably" , "By unexpressed agreement" , "Without a word" .)

I've seen this clue in The Hindu.

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