Is there, an abstainer concludes (7)

I believe the answer is:

attends

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'is there' is the definition.
I can't judge whether this defines the answer.

'an abstainer concludes' is the wordplay.
'an' becomes 'a'.
'abstainer' becomes 'tt' (I've seen this in other clues).
'concludes' becomes 'ends' (I've seen this in another clue).
'a'+'tt'+'ends'='ATTENDS'

Can you help me to learn more?

(Other definitions for attends that I've seen before include "ministers" , "Pays attention" , "Listens" , "to listen carefully" , "Waits on or is present" .)

I've seen this clue in The Irish Independent.

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