Low speed, in case pal's struggling (6,4)

I believe the answer is:

snails pace

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'low speed' is the definition.
The definition suggests a singular noun which matches the answer.

'in case pal's struggling' is the wordplay.
'struggling' is an anagram indicator (the letters struggle or wriggle into a new form).
'in'+'case'+'pals'='incasepals'
'incasepals' anagrammed gives 'SNAILS PACE'.

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(Other definitions for snails pace that I've seen before include "Very slow speed" , "Slow rate of progress" , "no rush" , "making slow progress" , "at a very low rate" .)

I've seen this clue in The Independent.

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