Time batting gains missing wicket (7)

I believe the answer is:

innings

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'time batting' is the definition.
'innings' can be an answer for 'batting' (cricket). I am not sure about the 'time' bit.

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for innings that I've seen before include "Batsman's spell at wicket" , "Time spent batting" , "A team's turn at batting" , "Batting stint" , "Time at the crease for one batsman (or eleven)" .)

I've seen this clue in The Times.

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