Crossword Genius

Navy supports holding line (5)

Ross

I believe the answer is:

fleet

'navy' is the definition.
(I've seen this before)

'supports holding line' is the wordplay.
'supports' becomes 'feet' (foot is a kind of support).
'holding' is an insertion indicator.
'line' becomes 'l'.
'feet' going around 'l' is 'FLEET'.

(Other definitions for fleet that I've seen before include "Fast as a naval unit" , "Fast moving" , "Navy's ships" , "good turn of speed" , "bowler famously intercepted one once" .)

I've seen this clue in The Times.
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