Lack of coverage from tin spikes on board ship (10)

'lack' is the definition.
(thesaurus)

'coverage from tin spikes on board ship' is the wordplay.
'coverage' becomes 'canes' (I can't justify this - if you can you should give a lot more credence to this answer).
'from' is an anagram indicator (from the letters).
'spikes' means one lot of letters goes inside another (the word is spiked with inserted letters).
'on board' indicates putting letters inside (inserted letters are taken on board).
'ship' becomes 'SS' (prefix in ship names eg SS Great Britain).
'tin' with letters rearranged gives 'nti'.
'canes' going around 'nti' is 'cantines'.
'cantines' put into 'ss' is 'SCANTINESS'.

'of' is the link.

Can you help me to learn more?