English tutors somehow getting fatter (7)

I believe the answer is:

stouter

'fatter' is the definition.
('stout' can be similar in meaning to 'fat')

'english tutors somehow' is the wordplay.
'english' becomes 'e' (abbreviation).
'somehow' indicates an anagram.
'e'+'tutors'='etutors'
'etutors' is an anagram of 'STOUTER'.

'getting' is the link.

(Another definition for stouter that I've seen is " Sturdier; fatter".)

I've seen this clue in The Times.

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