A flimsy perch (6)

I believe the answer is:

alight

'perch' is the definition.
('alight' can be a synonym of 'perch')

'a flimsy' is the wordplay.
'flimsy' becomes 'light' (I've seen this before).
'a'+'light'='ALIGHT'

(Other definitions for alight that I've seen before include "Ignited; get off" , "Leave a vehicle - burning" , "Touch down" , "(Of bird) settle" , "'Step off, a bus, say (6)'" .)

I've seen this clue in The Telegraph.

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