Like pointers in a line entering track (6)

I believe the answer is:

arrowy

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'like pointers in' is the definition.
The definition suggests an adjective which matches the answer.

'a line entering track' is the wordplay.
'line' becomes 'row' (a row or line of things).
'entering' is an insertion indicator.
'track' becomes 'ry' (abbreviation for railway).
'row' inserted inside 'ry' is 'rrowy'.
'a'+'rrowy'='ARROWY'

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I've seen this clue in The Times.

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